The partial suspension of the UK's air ambulance fleet is due to a discovery of a technical fault discovered on one, the Association of Air Ambulances said.
The grounding is as a result of a technical fault on one air ambulance aircraft with other Eurocopter EC135 in the UK and worldwide remaining operational at this time.
The suspension of operations is not as a result of the incident in Glasgow involving this type of aircraft on the 29th November, for which investigations continue.
Bond Air Services are continuing to investigate the technical fault that has resulted in the temporary suspension of services from the afternoon of the 11th December 2013.
The investigations include functional testing across each of the EC135 aircraft affected to gather more information and will ensure air ambulance operations are regularly updated.
More top news
Nazanin Zaghari-Ratcliffe's five-year jail sentence is confirmed despite her husband's campaign to bring her home.
A man who was filmed swallowing a goldfish for a drinking challenge is facing jail.
Paul Nuttall has said the by-election in Stoke will be "very close" and is going to be the "biggest campaign Ukip has ever run".