On April 18, 2006, US Congressman, Dennis Kucinich sent a letter to US president George W. Bush in which he expressed his judgment that the US is likely to be supporting and coordinating PJAK, since PJAK operates and is based in Iraqi territory, which is under the control of the Kurdistan Regional Government.
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.
On September 28, 2006, Iran said that two members of the PKK (which Iran regularly confuses with the closely affiliated PJAK) blew up a gas pipeline to Turkey near the town of Bazargan in West Azerbaijan province.