Afghan forces personnel killed in 'friendly fire' air strike
Five Afghan soldiers and a police officer have been killed in error after an air strike carried out by an Afghan military helicopter in the western Farah province.
Afghanistan's ministry of defence said the helicopter had used "inaccurate information from ground forces" when it conducted the air strike late on Friday night.
It said the forces were being attacked by insurgents in the Bala Buluk district. When they called for air support, the helicopter incorrectly fired a rocket at a checkpoint occupied by Afghan security forces.
The incident is being investigated, the statement says.
It comes after a US air strike in eastern Nangarhar province killed at least 15 people on Wednesday. Officials and the UN mission in Kabul confirmed the dead were civilians.