Reports from Afghanistan say at least four local police officers and five civilians have been killed in an air attack after an accidental clash with US-led coalition forces.
The incident happened in the western province of Farah.
A BBC reporter says the fighting took place in the early hours of the morning and it was dark and there was much confusion.
The police opened fire on a joint convoy of Afghan national army and foreign troops, mistakenly believing they were Taleban fighters.
A local official said that the troops had arrived unannounced, which had raised suspicions.
On hearing the gunfire a number of locals had rushed to support the police.
Foreign troops called in air strikes during the clashes killing several policemen and civilians.
