ANKARA, Jan. 7 (Xinhua) -- Six members of the Kurdistan Workers' Party (PKK) were killed in airstrikes by Turkish jets in northern , the military said on Sunday.

The operation was carried out by Turkish Air Force in Kani Rash town in Iraq, Turkish General Staff said in a written statement.

The militants were planning an attack on Turkish military posts and bases, according to the statement.

The PKK, listed as a terrorist organization by Turkey, the U.S., and the EU, resumed its 30-year armed campaign against the Turkish state in July 2015 after a brief reconciliation period.

The Turkish military has been carrying out anti-terror operations against PKK positions in northern Iraq since July 2015, with main focus on Qandil region, where the group's main base is located.