Three British soldiers have been killed in an attack by a renegade Afghan soldier in Nah-e-Saraj, Helmand Province, Afghanistan.
The soldiers were all part of the International Security Assistance Force (ISAF).
Security sources say the soldiers, believed to be Gurkhas, were killed by a renegade Afghan soldier.
Afghan President Hamid Karzai has asked the defence minister for more information about the attack and how it happened.
Presidential spokesman Waheed Omar speaking on reports that the fire came from Afghan forces said:"If it is confirmed, it's a very unfortunate attack and the government of Afghanistan will do everything to make sure the proper traitors are brought to justice."
The three latest deaths brings the number of soldiers killed in action in Afghanistan to 279.