Nato helicopter crashes in Afghanistan 25 July 2011 Last updated at 07:01 GMT

A Nato helicopter has crashed in eastern Afghanistan, but there have been no casualties, officials say.

A Taliban spokesman said they had shot down the helicopter in a mountainous region in Kunar province.
The US-led International Security Assistance Force (Isaf) said it was investigating the cause of the crash.
It said in a statement that the troops came under fire from militants but the crew and passengers of the helicopter were safe.
A government spokesman for the Kunar province Safiullah Wasifullah Wasify told the Associated Press news agency that the helicopter went down early on Monday in the Chapa Dara district.
He said he had received reports that it was shot down by a rocket.
The Taliban have in the past shot down helicopters of foreign forces in Afghanistan.