Five members of NATO's international support mission were killed and five wounded after a British military helicopter crashed in the capital of Afghanistan, Kabul, officials said on Monday.
Two British Royal Air Force members were among the dead during a UK Puma Mk 2 helicopter crashed while attempting to land at headquarters of NATO training mission, Britain's Ministry of Defence (MoD) announced on its website.
"The incident is currently under investigation but we can confirm that it was an accident and not the result of insurgent activity," said the MoD news release.
“The families of the two personnel who were killed have been informed and requested a period of grace before their names are released.”
The crash came following the attack on British military vehicles in Kabul earlier on Sunday. The MoD said seven people were injured and there was no British loss.
NATO's combat mission in Afghanistan has ended but almost 12,000 mainly US soldiers deployed in Afghanistan, within the scope of Resolute Support, have stayed to train 40,000 Afghan troops.
Afghanistan has witnessed rising levels of violence since NATO forces withdrew from the country in December 2014. The UN says 2014 was the most violent year since the US forces invaded the country in 2001.
An estimated 40,000 civilians have been killed in Afghanistan since 2001 as a result of fighting between Taliban and Afghan troops backed by foreign forces.