2007 West Azernaijan clashes were a series of armed clashes between Iranian security forces and the Kurdish insurgent group PJAK in Iran's West Azerbaijan province. It started with a series of clashes between Iran and the PKK, leading to the death of 17 PKK militants between February 22 and February 24 by Iranian forces. This was followed by an Iranian helicopter crash in Khoy, an incident which was claimed to be performed by PJAK, though denied by Iranians as technical malfunction. The Iranian military launched an offensive the next day which resulted in the death of 47 insurgents and 17 security forces and lasted until March 1.