At least four people, three militants and a police officer, have been killed, following clashes, in the city of Diyarbakir, in southeastern Turkey.
At least 15 police officers have been killed, following two bombings, by suspected PKK militants, in eastern Turkey.
At least nine people have been killed in a wave of separate attacks in Turkey, while a shooting, perpetrated by two women, targeted the US consulate in Istanbul.
A Moroccan Air Force F-16 fighter jet, which was taking part in coalition airstrikes in Yemen, has gone missing, with no word of its current location.
Turkey has scrambled two F-16 fighter jets on its border with Syria, after a Syrian bomber reportedly flew close to the border.
The pilot of a Thai air force F-16A fighter jet has been killed after his plane crashed during a routine drill, officials have said.