Turkey launched fresh air strikes on Kurdistan Workers Party (PKK) militants in northern Syria and Iraq overnight, killing 59 militants, in response to a gun attack that killed five people in Ankara,

At least 27 civilians were killed in northern and eastern Syria in a 24-hour military escalation, according to a war monitor, as Turkey struck suspected Kurdish militant targets in Iraq and Syria for the second day.

Outlawed Kurdish PKK militants have claimed the attack on a Turkish defence firm that killed five, with officials saying the perpetrators infiltrated from Syria and carried out a shooting and suicide attack.