An International Security Assistance Force (ISAF) soldier was killed in a roadside bombing in southern Afghanistan, the alliance said on Thursday.

The death was announced in a brief statement that neither disclosed the soldier’s nationality nor the exact location of the incident.

Mostly American and British soldiers are based in the south.

With the latest fatality, the number of NATO-led troops so for killed in Afghanistan this year increased to 515.

The UK Ministry of Defence said a British soldier was killed yesterday by an explosion in southern Helmand province. The soldier, who was from 4th Battalion The Yorkshire Regiment, was on patrol when he was killed by an improvised explosive device. His family has been told.

Lt Col Gordon Mackenzie, a spokesman for Task Force Helmand, said: We are all greatly saddened by the news of this soldier’s death.

We will keep him and his loved ones in our thoughts as we carry on with our important mission. His loss is not in vain