Car bomb Explodes in Libya's Tripoli
The source said the blast slightly wounded a Tunisian national, but it could not say who might have been behind it.
A Reuters witness said police had cordoned off the area around the blast’s location.
Several violent incidents have rocked Libya in recent days but these have been mostly confined to the eastern city of Benghazi.
Also in Benghazi, seven Iranian relief workers were abducted on Tuesday by an armed group just as they started an official mission as guests of the Libyan Red Crescent Association, which is still seeking to get them released- Reuters