The US coalition that is fighting the armed Islamic state group in Iraq is trying to shed light on an air strike that may have claimed the lives of a hundred civilians in Mosul last week.
This exceptionally heavy assessment highlights the problems faced by Iraqi forces fighting to expel jihadists from the second largest city in the country.
Residents of the Mosul Jidideh district told the Associated Press that dozens of people were killed when bombs fell on a group of houses earlier this month. One witness said that about 140 people had taken refuge there to escape the missiles.
Residents described two air strikes that occurred four days apart.
The coalition said they are investigating. Associated Press reporters saw at least 50 bodies being pulled out of the rubble on Friday.