British troops patrol Kosovo-Serbia border as tensions remain high

British troops are patrolling the Kosovo-Serbia border as part of a NATO peacekeeping presence being bolstered amid concern that the former wartime foes could return to open conflict following a series of violent incidents in recent months.

The North Atlantic Treaty Organization sent hundreds of additional forces to Kosovo from Britain and Romania after a battle between the authorities and armed Serbs holed up in a monastery turned a quiet village in northern Kosovo into a war zone on Sept. 24.

One police officer and three gunmen were killed in the village of Banjska in what was seen as the worst violence since Kosovo declared independence from Serbia in 2008.

Kosovo accused Serbia of providing financial and practical support for the gunmen, which Belgrade denies.

NATO has sent 1,000 extra troops to the region, bringing its presence there to 4,500 peacekeepers from 27 countries.

British soldiers are now being deployed in 18-hour shifts in freezing conditions to make sure no weapons or armed groups enter Kosovo.

"Currently we are here on a routine patrol, which consists of understanding patterns of life, gaining intelligence on any illegal or suspicious activity that then gets fed back to KFOR (NATO mission) and higher," Lieutenant Joss Gaddie from the British Army told Reuters at the border with Serbia.

During a visit on Monday to the western Balkans, NATO Secretary-General Jens Stoltenberg said the organization is reviewing whether a more permanent increase of forces was needed "to ensure that this doesn't spiral out of control and creates a new violent conflict in Kosovo or in the wider region."