The UK Puma Mk 2 helicopter aircraft crashed during landing at the headquarters of NATO's Resolute Support mission in the capital Kabul earlier today.
An MoD spokeswoman said: "The incident is currently under investigation but we can confirm that it was an accident and not the result of insurgent activity.
"The family of the two personnel who were killed have been informed and requested a period of grace before their names are released."
The MoD has not revealed the gender of the victims or their ages but confirmed they were British.
They were from 230 and 33 Squadrons, which both are based at RAF Benson, between Oxford and Reading in south Oxfordshire.
Resolute Support is a NATO-led mission to train and assist Afghan security forces and institutions, following the stand-down of the International Security Assistance Force (Isaf) last year.
The incident is currently under investigation but we can confirm that it was an accident and not the result of insurgent activity
MoD spokeswoman
The tragedy follows a separate incident this morning when a convoy of UK military vehicles was attacked in Kabul.
Three civilians - said to include a woman and a child - were wounded but no-one was killed.
The MoD said the blast was caused by an improvised explosive device and there were no British casualties.
http://report24uk.info/article/332682/breaking-raf-personnel-killed-in-helicopter-crash-in-afghanistan
