The conflict between the Democratic Party of Iranian Kurdistan (KDPI) and the Komala Party of Iranian Kurdistan began when the latter refused to stop calling the former a "class enemy" and the tensions started to grow. Komala continued making anti-KDPI propaganda, and subsequently KDPI declared war on Komala. Both Kurdish organizations ended up simultaneously fighting against Iranian forces separately.
Fetching the article from Wikipedia…
Text from the Wikipedia article “KDPI–Komala conflict”, available under CC BY-SA 4.0.