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
IKEA is recalling almost 36 million chests and dressers in the US and Canada after the deaths of three children.
Toyota is recalling 1.43 million cars for an airbag inflator defect.
Prime Minister insists the UK will maintain a strong relationship with Europe especially on trade and security, even after it leaves the EU.