ANKARA, Turkey — Turkey's president says Turkish jets have struck Iraq's Qandil mountains, where outlawed Kurdish rebels maintain their headquarters.

Speaking at an election rally Monday, Recep Tayyip Erdogan said some 20 warplanes had hit Qandil, destroying 14 "important targets" of the Kurdistan Workers' Party, or PKK. He did not say when the strikes took place but said such operations would continue.

Erdogan said: "Our aim is to drain the biggest of terrorist swamps. We are preventing Qandil from becoming a threat and a source of terror."

Turkey conducts frequent air raids on suspected militant camps in northern Iraq. Officials have said that Turkish soldiers stationed in northern Iraq could attack the rebel stronghold.

The PKK has waged a three-decade-long insurgency in southeastern Turkey. The conflict has killed tens of thousands of people.