On 3 September 2021 at 14:40 NZST, eight people were injured in a mass stabbing at a Countdown supermarket at LynnMall in New Lynn, Auckland, New Zealand. The attacker, Ahamed Samsudeen, was being followed by police officers, who intervened during the attack, shooting and killing him after he charged at them. He was pronounced dead at the scene.
The incident was treated as terrorism and was "ISIS-inspired" according to Prime Minister Jacinda Ardern. It was the second stabbing in less than four months to occur at a Countdown supermarket, the first being in Dunedin, and the first terrorist attack in New Zealand since the Christchurch mosque shootings in 2019.
Background
At the time of the incident, the Auckland region was under strict alert level 4 lockdown due to an outbreak of the COVID-19 Delta variant in the city on 17 August 2021. Supermarkets were one of the few businesses allowed to open at this alert level. In addition, supermarkets were limiting the number of people in the store at one time to ensure social distancing.
Terrorism in New Zealand has been relatively uncommon. The last incident, the Christchurch mosque shootings, was carried out in March 2019, where two mosques were attacked during Friday prayers. A subsequent royal commission found that New Zealand's terrorism legislation was inadequate, and Parliament was already debating amendments to the legislation.
Incident
The attacker was trailed by a police surveillance team together with a separate tactical team from the Special Tactics Group when he left his home in Glen Eden and travelled by train to the Countdown supermarket at LynnMall. The surveillance team had difficulty closely following the man in the supermarket due to the man's paranoia of being followed and social distancing restrictions. He proceeded to shop in the supermarket for 10 minutes without suspicion before the attack.
He used a knife from a shelf in the supermarket to carry out the attack. At least one video of the attack was posted to social media showing shoppers warning others and some attempting to intervene.
Two Special Tactics Group officers following him were alerted to the attack 60–90 seconds after it started, and shot the attacker 60 seconds later after he refused to surrender, killing him. He was shot after he ran at them with his knife raised.
Victims
Eight people were injured in the attack. Six victims were taken to hospital, five with stab wounds and one with a dislocated shoulder. Auckland City Hospital received three in critical condition and one in a serious condition. Waitakere Hospital and Middlemore Hospital each received one patient in a moderate condition. One victim received minor injury and self-treated at home. An eighth victim was reported by police on 14 September 2021. There were four female victims aged 29, 43, 60 and 66; and three male victims aged 53, 57 and 77. As of 14 September 2021, five of the victims were recovering at home, while three remained in stable condition at Auckland Hospital.
Attacker
The perpetrator was identified as Ahamed Aathill Mohamed Samsudeen (1988/1989 – 3 September 2021) a 32-year-old Sri Lankan Moor national who arrived in New Zealand in October 2011. Samsudeen, who had a long history of mental health problems and sympathy towards the Islamic State, was shot and killed by the police during the attack.
Samsudeen was born in Kattankudy, Sri Lanka, a Muslim-majority town which has had issues with radicalisation in recent years. The youngest child in a family of four children, he received his secondary education at Colombo Hindu College which in Bambalapitiya, Colombo before arriving in New Zealand in 2011 on a student visa.
Samsudeen sought refugee status as a Tamil Muslim, alleging that he and his father had issues with Sri Lankan authorities because of their political background. His original claim to refugee status was declined in 2012.
In 2013 the Immigration and Protection Tribunal said that Samsudeen was "persistently re-experiencing traumatic events" and concluded he had a well-founded fear of facing harm if he returned to Sri Lanka. He was subsequently granted refugee status. His claim to asylum was supported by scars on his body, as well as a psychologist's report which said Samsudeen presented as a "highly distressed and damaged young man" suffering from post-traumatic stress disorder and depression. While investigating him years later, Immigration NZ was made aware of information that led them to believe his refugee status was fraudulently obtained.
According to his mother living in Sri Lanka, Samsudeen was radicalised in New Zealand. She blamed his neighbours from Iraq and Syria for exposing him to radical views. On 23 March 2016, Samsudeen came to the attention of New Zealand police after posting photos of horrific acts of war brutality on his Facebook page, along with remarks praising the Islamic State terrorist strikes in Brussels the day prior, hence being considered a supporter of ISIS. Samsudeen was deemed a public safety danger after purchasing large hunting knives on two occasions and owning Islamic State videos.
On 29 April and 25 May 2016, police formally warned Samsudeen about posting objectionable material on the web. He apologised and deleted his social media account.
Samsudeen continued to engage in online activities. On 19 May 2017, Samsudeen booked flights for his family to Kuala Lumpur, and for himself to Singapore via Kuala Lumpur. All were for the next day. Police arrested Samsudeen at Auckland Airport on the evening of 20 May, Samsudeen had told a worshipper at an Auckland Mosque he wanted to go to Syria "to fight for ISIS", and he was held in custody without bail. He subsequently pled guilty to charges of distributing restricted material.
After his arrest, police executed a search warrant at Samsudeen's flat. The search found Samsudeen had a large hunting knife under a mattress on the floor, and digital storage media which contained fundamentalist material, including propaganda videos, and photographs of Samsudeen posing with a firearm and digital bookmarks to sales of firearms, crossbows, binoculars, military boots and a vest. He was charged with having these goods, and pled guilty to counts of intentionally distributing restricted publications, fraud, and failing to cooperate with authorities in the execution of their search warrants. He was granted bail.
In August 2018, Samsudeen bought a knife while on bail and was arrested again. Another search turned up extremist content, including an Islamic State film showing a masked man slitting a prisoner's throat and wrists in order to kill a "non-believer". He also faced allegations of possessing objectionable material, possessing an offensive weapon, and failing to cooperate with authorities in the exercise of search warrants.
After spending three years in prison, he was released into the community in July 2021. In May 2021, he had been convicted of possessing propaganda-style material supportive of ISIS and was sentenced to one year of supervision. After release from prison, he was being watched by police and the New Zealand Security Intelligence Service, with up to 30 police monitoring him. At the time of the attack he was still facing charges for assaulting prison officers while in custody.
Court cases
In September 2018, Samsudeen was sentenced to 12 months supervision in relation to the first set of charges, but remained in prison due to additional offences he committed and subsequent charges while on bail.
In July 2020, Samsudeen remained in custody awaiting trial, and the Crown attempted to add an additional charge for the knife and internet posts under the current Terrorism Suppression Act. The High Court denied this, stating that they were bound by law, Justice Downs said it was not for the courts to create such an offence, further saying "The absence of an offence of planning or preparing a terrorist act ... could be an Achilles' heel."
In May 2021, Samsudeen was found guilty in the High Court of possessing undesirable publications, knowing and neglecting to help the police in carrying out their search warrants. He was found not guilty of another charge of having unpleasant material in his possession, as well as the accusation of having a weapon in a public place.
On 6 July 2021, Samsudeen was sentenced to 12 months of supervision by a High Court judge due to the length of time he had previously spent in custody. There were some additional requirements, such as showing his probation officials all of his personal devices and giving them access to his social media accounts. He also had to go through a rehabilitation evaluation and treatment. The Crown wanted him to be monitored by GPS, but that wasn't imposed by the court. He then applied for bail on the charges of assaulting the Corrections officers. A pre-sentence report submitted to the court noted that Samsudeen "had the means and motivation to commit violence in the community" and his risk of reoffending was also considered high. On 16 July 2021, Samsudeen was released on bail by an Auckland District Court judge and was to be monitored by the Special Tactics Group. The Department of Corrections turned down an offer by the New Zealand Muslim Association (NZMA) to help rehabilitate Samsudeen following his release, due to his unwillingness to engage with religious and cultural support. The NZMA expressed concern that Corrections had elected to house Samsudeen at Glen Eden's Masjid e Bilal, whose resources were limited compared to the NZMA.
Responses
Political
Prime Minister Jacinda Ardern and Police Commissioner Andrew Coster held a media briefing at 17:15 on the day of the attack. Auckland Mayor Phil Goff vented frustration that the Prime Minister could not share information about the terrorist to the public due to court-issued suppression orders. He also said it is even harder to deal with this attack while the city is under alert level 4 lockdown.
The Sri Lankan government began its own investigation and offered to cooperate with New Zealand authorities.
On 30 September, the New Zealand House of Representatives passed the Counter-Terrorism Legislation Act 2021, which criminalised the planning of terror attacks and expanded the powers of police to conduct warrantless searches. The counter-terrorism bill was supported by the governing Labour and opposition National parties but was opposed by the Green, ACT and Māori parties.
Societal
The Federation of Islamic Associations of New Zealand condemned the attack, stating that "terrorists who do such inhumane and vile acts do not belong to any religion... They act out of sheer hate, and they have no place in our country." It also expressed sympathy for the victims and their families as well as bystanders who had witnessed the terror attack.
Samsudeen's family condemned his actions and expressed their love and support for the victims. Sri Lanka's Muslim Council also condemned the attack, calling it a barbaric act of terrorism.
Supermarkets
Countdown as well as Foodstuffs, which together own the vast majority of supermarkets in New Zealand, removed all sharp knives from sale nationwide as a precautionary measure.
Judicial
The incident has been referred to the Independent Police Conduct Authority and to the coroner for investigation.
Coronial inquest first phase
On 3 June 2025, a coronial inquest into the death of Ahamed Samsudeen began with legal arguments followed by evidence by eyewitnesses and experts. On 4 June, Coroner Marcus Elliot opened the first phase of the inquest by acknowledging the victims, members of the public who confronted Samsudeen and the responding police officers. Two survivors also detailed their ongoing physical and psychological injuries. CCTV footage of Samsudeen's attack was played in court. Detective senior sergeant Jason McIntosh also told the court that Samsudeen had accessed a website and searched for objectionable content encouraging violence and terrorism. Auckland Crown Solicitor Alysha McClintock also questioned McIntosh on why STG officers did not follow Samsudeen into the supermarket that day.