All aboard killed in US helicopter crash in Iraq: military
US Apache helicopters, like this one pictured in 2015, are operating in support of the Iraqi Security Forces (AFP Photo/Jung Yeon-Je)

All personnel aboard a U.S. military helicopter carrying American service members were killed in a crash in western Iraq, the U.S. Central Command said on Friday.

The Thursday crash does not appear to be a result of enemy activity and is under investigation, the command said in a statement. It did not provide the number of people killed or any other details. A U.S. military official told Reuters on Thursday the U.S. HH-60 Pave Hawk helicopter was carrying seven people.

Reporting by Doina Chiacu