A car bomb attack near a hospital in Libyas second city of Benghazi killed at least four people and wounded 13 others on Monday, a medical source said.

The source, asking not to be named, said the attack took place in front of the coastal city's Al-Jalaa hospital and he warned that the death toll could rise.

Benghazi, birthplace of Libya's 2011 revolution which toppled longtime dictator Moamer Kadhafi, has been the scene of daily clashes for the past two years between armed forces of Marshal Khalifa Haftar and jihadists holding onto pockets of the city.

Five years after the revolution, the country is embroiled in violence and political chaos as militias and two rival administrations vie for power.