A US military reconnaissance helicopter went down in northern Iraq on Jan. 23 night, killing two US pilots, the US military said in a statement.
The crash of the US Army OH-58 Kiowa Warrior helicopter occurred at about 8:30 p.m. (1730 GMT) Friday near northern Iraqi town of Qayyarah, which is not far way from Mosul, said the statement.
The crashed military helicopter was attached to the 101st Airborne Division of the US army in Iraq, the statement said, without mention the cause of the crash.
However, according to a US military source, an initial report from the accompanying second helicopter did not make mention of hostile activity.
Friday's crash was at least the fourth helicopter crash suffered by US forces in Iraq this month.
On Jan. 2, one soldier died and another was wounded when ground fire struck a Kiowa while 9 US soldiers were killed on Jan. 8 when a Black Hawk helicopter was hit by rebel fire near Fallujah.
A US AH-64 Apache helicopter crashed on Jan. 13, after a suspected downing by insurgents in the restive western district of Fallujah.
Friday's latest deaths brought to 507 the number of American soldiers being killed in Iraq since the US-led coalition launched the Iraq war on March 20.