AIR ambulance charities are coming together to celebrate National Air Ambulance Week.

The initiative runs from September 22 to 28 and celebrates the life-saving work of the UK's air ambulances.

The Association of Air Ambulances is urging people to record a short video saying “I support my local air ambulance, do you?” and then nominating friends and family to do the same.

The video can then be uploaded to Facebook or Twitter, mentioning @MAA_Charity, using the hashtag #NAAW2014.

People can also text MAAC00 £1 to 70070 to donate.