An air ambulance which was left stranded in a field near Doncaster for a week has finally returned to base after being grounded with mechanical issues.

The bright yellow helicopter, one of three operated by the Yorkshire Air Ambulance Charity, touched down near to Conisbrough for an emergency incident on Monday – but was then unable to take off again due to mechanical issues.

The aircraft – registered as G-YAIR – was reportedly kept under 24 hour security in a field near to Cockhill Field Lane and Cockhill Lane after its breakdown.

A spokesperson for the Yorkshire Air Ambulance charity confirmed that the aircraft had now been returned to its base in Nostell near Wakefield, but declined to give any further details on what was behind the mechanical failure.

Details have also not been released about the incident that the helicopter was attending to at the time of the malfunction.