Let's pray for and take those soldiers' families and friends and take them into our hearts today no matter which country they are from.... as they are all our family.. our military family.
Troops responding to the scene of the crash were ambushed and called for an air strike to eliminate the threat, NATO officials said.
NATO would not say immediately if the big, twin-rotor military helicopter was directly involved in a battle with Taliban guerrillas or whether it was shot down. The cause of the crash was under investigation.
"Clearly there were enemy fighters in the area," said Major John Thomas, a spokesman for NATO's International Security Assistance Force in Kabul. "It's not impossible for small arms fire to bring down a helicopter."
The helicopter went down in the southern province of Helmand, Afghanistan's main opium poppy-growing region, where Western forces have clashed repeatedly with Taliban militants in recent months following a winter lull in fighting.
"The entire crew of five died in the incident. There were also two military passengers who died," ISAF said in a statement. "One Afghan civilian was injured by small arms fire after the crash."
ISAF did not release the nationalities of soldiers killed or wounded in Afghanistan.