A provincial government official says an early morning NATO airstrike in Afghanistan’s central Logar province killed 5 Afghan National Army soldiers and wounded another 17.

The official, who asked not to be identified because he was not authorised to talk to the media, says the strike occurred at 2 a.m. local time on Thursday.

There was no immediate response from NATO to requests for comment.

If it turns out that a NATO strike killed ANA troops, it is likely to set Afghan President Hamid Karzai on another attack against U.S. and NATO soldiers in his country. The President has been deeply critical of civilian deaths by international forces.