Kabul, Afghanistan (CNN) -- A NATO airstrike mistakenly killed two Afghan soldiers and injured seven others on Wednesday, a provincial official told CNN.
The incident occurred in the Pangram area of Logar province's Charkh district, said Deen Mohammad Darwish, the Logar governor's spokesman.
Darwish said troops with NATO's International Security Assistance Force were attacked by insurgents during a patrol.
The troops called for air support, and at the same time Afghan National Army soldiers moved to help the NATO forces, two rockets struck the soldiers by mistake, he said.
Darwish believes the accident occurred because the distance between insurgents and security forces was very close. He also said four insurgents were killed.
There was no immediate NATO comment.