Islamic State group jihadists, including two suicide bombers, killed four Libyan soldiers and wounded 24 in their latest foray into territory controlled by the UN-backed government, the army said on Thursday.
British Foreign Secretary Philip Hammond arrived Monday on a surprise visit to Tripoli, officials said, in the latest foreign visit in support of Libya's UN-backed unity government.
Libyan authorities said Sunday they had arrested 203 African migrants in the capital who were preparing to make a perilous sea crossing to Europe.
Italy's foreign minister flew into Tripoli for talks with the head of the unity government Fayez Seraj - the first senior Western official to meet the new Libyan administration since it moved to the capital.
At least 47 people were killed on Thursday when Libya's worst bomb attack since the fall of Muammar Gaddafi hit a police training centre as hundreds of recruits gathered for a morning meeting.