At least four people were killed and others were injured when a car bomb went off at a checkpoint in Al-Khums, 120km east of Tripoli, on Tuesday morning.

The explosion took place at a military checkpoint locally known as Msallata checkpoint, around 10.00 am local time when the traffic was so busy.

Reports from the city say the explosion caused significant damage to the passing cars. 

No one claimed responsibility for the IS-style attack.