Half of the UK's helicopter air ambulance fleet is grounded over fears about potential cracks in the aircraft's rotor hub.

Scotland's two air ambulance helicopters have been suspended following a warning about their safety. Eurocopter, the helicopter manufacturer, issued a safety information notice about its EC135 fleet on Sunday after reports of cracks on the machines.

ALL three helicopters run by the Midlands Air Ambulance were back answering 999 calls this morning (Wednesday) after a day grounded due to safety fears.