TRIPOLI, Oct. 30 (Xinhua) -- A car bomb explosion hit Libya's second largest city Benghazi on late Saturday, killing at least four and injuring 14 others, local media reported on Sunday.
The explosion took place in Al-Keesh district in central Benghazi. Among those killed is Mohamed Bugaighis, an anti-corruption political activist who supports the national army headed by Maj. Gen. Khlalifa Haftar.
No group has claimed responsibility for the explosion.
Maj. Gen. Khlalifa Haftar has been leading a military campaign called "dignity" since 2014 against extremist groups in the city.
Haftar's forces has recently taken control of three major oil ports in eastern Libya, after defeating the militias that had been closing the oil hubs for years.
Benghazi, the birthplace of the 2011 uprising that toppled Muammar Gaddafi's regime, has been witnessing similar attacks, most notably the attack that took place in 2012 on the U.S. consulate which killed U.S. ambassador J. Christopher Stevens and three other officials.