At least four US troops have been killed after a helicopter operated by the US-led International Security Assistance Force (ISAF) went down in the conflict-plagued southern Afghanistan.

The Black Hawk aircraft crashed in Helmand Province on Thursday, a US military officer told The Los Angeles Times on condition of anonymity.

An official ISAF statement read, “The crash site is secured; the cause is under investigation. Additional information will be released as appropriate.”



SOURCE
http://www.presstv.ir/detail/237124.html

UPDATE

The Taliban claimed responsibility Friday for downing a Black Hawk helicopter in southern Afghanistan.
"Yesterday (Thursday) evening Taliban fighters shot down a helicopter and killed all its passengers in Khanashen Dewalak area near Garmsir, southern Helmand province," a Taliban spokesman wrote to CNN.
The helicopter's four crew members, all of them American, are believed to be dead, a U.S. military official said.
Fatal helicopter crashes involving members of the NATO-led International Security Assistance Force are not unprecedented in Afghanistan, with some of the aircraft brought down by enemy fire while others crashed for mechanical reasons.


SOURCE
http://edition.cnn.com/2012/04/20/world/asia/us-afghanistan-helicopter-crash/index.html?section=cnn_latest




i told earlier and repeating it now , Taliban has developed their strategy to bring down aircraft, inshaALLAH .
this is the 3rd helicopter down as reported and confirmed by isaf (although i expect the number is much more higher) in afghanistan in less then two week .
As usual the cause of the crash remains under investigation . LOOOOOOOOOL .