David Cameron has made a surprise visit to Libya where he promised to help bolster the police and the army, Sky News said.

The Prime Minister said Britain was ready to provide training and advice amid growing concern about the security situation in the region.

The premier last visited the country in September 2011, touring Tripoli and Benghazi shortly after Colonel Gaddafi lost his grip on power.

Mr Cameron is due to hold talks with counterpart Ali Zeidan and President Megarief while in the country.