London:  A British soldier was killed and two others injured when a vehicle they were travelling in rolled over while on patrol in southern Afghanistan, Britain's Ministry of Defence said on Saturday.

"The vehicle had been part of a patrol, conducting force protection when the incident occurred. The incident was not combat-related," said the MOD in statement.

The three soldiers, who were from the 13 Air Assault Support Regiment Royal Logistic Corps, were evacuated to Nato's International Security Assistance Force's medical facilities at Camp Bastion.

"Sadly, despite the best efforts of the medical team, one soldier died of his wounds," the statement added. The death in Helmand province brings to 109 the number of British troops killed since US-led forces invaded Afghanistan to drive out the Taliban government and Al Qaida militants after the September 11, 2001, attacks on the United States.