Two Turkish soldiers were on Wednesday killed in a car bomb attack in northern Syria as the military seeks to help Syrian rebels capture a key town from Islamic State (IS) jihadists, reports said.

The attack took place in the region of the town of Al Bab, 25 kilometres (15 miles) from the Turkish border, which has become a key target of the army's more-than-three-month campaign inside Syria, the private NTV broadcaster said.