An Afghan soldier opened fire on Sunday inside a base in the southern Helmand province, wounding three US soldiers before being shot dead, an Afghan official said.

Colonel Mohammad Rasoul Zazai, an army spokesman, said the soldier had made a “mistake” and had not fired deliberately. A coalition-run Twitter account said an Afghan soldier shot and wounded three American soldiers, without providing further details.Several US troops have been killed in Afghanistan in recent years in so-called insider attacks carried out by Afghan police or soldiers. In October, an Afghan man in a military uniform shot dead a US soldier and an American civilian contractor inside a military base in Kabul before being killed.(The guardian)…[+]