An Iraqi soldier was killed and four people, including two US soldiers, were wounded when two American helicopters crashed in northern Baghdad, a media report said on Sunday.

The UH-60 Black Hawks crashed at about 8:55 pm on Saturday in a northern section of Baghdad, said the US military spokesman, Lieutenant Patrick Evans.

Enemy fire is not suspected at this time, he added.

An investigation into the incident was underway, the report said. It was the second helicopter crash in two weeks.