Militants linked to the Islamic State (IS) terror group have increased their attacks in recent weeks against military forces and civilians in the desert region of Syria.

Gen. Khalifa Haftar, the rebel leader who controls Libya’s oil-rich east, recently declared he has a popular mandate to rule all of the North African nation, a move that may give Russia the upper hand if he can succeed in taking Tripoli amid nearly a decade’s worth of sectarian strife.

At least 40 people have been killed in a bomb attack in the north-western Syrian city of Afrin, Turkey says.