WILTSHIRE'S police and air ambulance helicopter is still grounded this morning after a mechanical fault was identified on a similar aircraft.

Police and Medical Air Services, from whom Wiltshire police leases its helicopter, asked that all the McDonnell Douglas helicopters that it leases be taken out of service on Monday until maintenance checks are carried out.

This follows an incident when a rotor tail fault developed on the aircraft operated by the London Air Ambulance, which can cause a sudden drop in height.

A spokesman for Wiltshire Police said: "We have been asked that the helicopter is grounded until the component involved can be checked.

"Hopefully this will be carried out later on today, but possibly not until tomorrow. The aircraft will remain grounded until then."