Britain is to send troops to Tunisia to help prevent Islamic State fighters from moving into the country from Libya, the British Defense Minister has said, according to Reuters.

"A training team of some 20 troops from the 4th Infantry Brigade is now moving to Tunisia to help to counter illegal cross-border movement from Libya in support of the Tunisian authorities," Michael Fallon told Parliament on Monday, February 29.

The move comes after growing Western concern that Islamic State (IS) is seeking to use Libya as a base to plan and carry out attacks. Last June, 30 British holidaymakers were killed when an Islamist gunman attacked a beach at a hotel on Tunisia's Mediterranean coast.

"I ... am extremely concerned about the proliferation of Daesh (IS) along the Libyan coastline, which is why we have been urgently assisting the formation of a new Libyan government," Fallon said.

Western officials say they are discussing air strikes and special forces operations in Libya against the group that is seeking to set up a cross-border Islamic caliphate and has already seized large areas of Syria and neighbouring Iraq.

Fallon said Britain was not currently planning to deploy ground troops to Libya in a combat role.