Six US soldiers from the NATO mission fighting Taliban insurgents in Afghanistan were killed in a helicopter crash today, with officials saying it was not a suspected militant strike.
However the Taliban immediately claimed responsibility for the deaths, using their main Twitter account to report that their fighters had shot down the US helicopter in the southern province of Zabul.
The incident was the single biggest loss of life for the NATO mission in Afghanistan since seven Georgian soldiers died when a suicide bomber blew up a truck loaded with explosives outside a base in Helmand province in June.
"Six International Security Assistance Force (ISAF) service members died following an aircraft crash in southern Afghanistan today," an ISAF statement said.
"The cause of the crash is under investigation, however initial reporting indicates there was no enemy activity in the area at the time of the crash."
US defence officials in Washington told AFP that the fatalities were US troops.
"I can confirm six Americans were killed," said one official, who spoke on condition of anonymity.
An investigation was underway to determine "the cause of engine failure," the official said.
The Taliban Twitter account, under the name Abdulqahar Balkhi, said the helicopter was brought down today afternoon while flying low over the district of Shah Joy in Zabul.
"(The) chopper crashed in (a) ball of flame... Killing all 8 invaders aboard," the account said.
The Taliban regularly make unsubstantiated claims of attacks on NATO and Afghan forces and also exaggerate casualty numbers in proven strikes.
Provincial officials confirmed the incident in Zabul, a restive province bordering on Helmand and neighbouring Pakistan.
"I can confirm a helicopter crashed in Shah Joy district this afternoon but we don't have any information about the casualties or the cause of the hard landing," Mohammad Jan Rasolyar, deputy governor of Zabul province, told AFP.
