David Cameron pledged help to bolster the police and army in Libya as he made an unannounced visit to the country.
The Prime Minister said Britain was ready to provide training and advice amid growing concern about the security situation in the region.
On a walkabout in the capital's famous Martyrs' Square, Mr Cameron was greeted by friendly locals.
More top news
A similar split set up to today
The Eagles of Death Metal want to be the first to play the Bataclan when it reopens, the lead singer has said in an emotional interview.
Cheap commercial spaceflight took one giant leap closer to reality after Blue Origin successfully landed a rocket - upright - in Texas.