Bomb attacks targeted two police stations in the eastern Libyan city of Benghazi on Friday, causing extensive material damage but no casualties, a security official said.
"Unknown individuals threw explosive devices at the police stations in Ras Obeida and Al-Madina," the official told AFP.
The attacks damaged the police stations and several cars parked nearby, he said.
Benghazi, Libya's second city and cradle of the 2011 uprising that toppled the regime of now slain dictator Moamer Kadhafi, is the scene of frequent attacks and assassinations targeting security officials.
Authorities blame radical Islamists for the violence, including a deadly attack in September against the US consulate in Benghazi that killed Ambassador Chris Stevens and four other Americans.