Turkish news reports say that for the second straight night, Turkish jets have struck Islamic State group targets across the border in Syria. The fighter jets also hit camps of Kurdish PKK militants in northern Iraq.

It's the first time Turkey has struck Kurds in northern Iraq since a peace deal between Ankara and the rebel group was announced in 2013.

Tensions have flared with Kurds in recent days after an IS suicide bombing in the southeastern Turkish city of Suruc Monday. Kurdish groups blame the Turkish government for not combatting IS.

On Wednesday, the PKK claimed responsibility for the killing of two Turkish policemen near the Syrian border.

Turkey started attacking IS positions after the suicide bombing and an IS ambush that killed a Turkish soldier.