A U.S. helicopter crashed Tuesday southeast of Baghdad, the U.S. military said, without disclosing whether anyone was killed or injured.

Initial reports indicated the crash was not due to hostile fire, the military said.

The statement also did not specify the type of helicopter.

The crash occurred near Salman Pak on the outskirts of the Iraqi capital, a military statement said.

"An investigation will be conducted to determine the cause of the incident," the statement said. "However, initial reports indicate the crash was not the result of enemy fire."