Safety officers are to investigate an accident in which a man plunged to the ground as he put up posters for an agency.

The man, who has not been named, was airlifted to hospital on Saturday afternoon following the incident at the Picturedrome, Holmfirth.

The man, who suffered multiple injuries, is “seriously ill” in Leeds General Infirmary. He was flown there in the Yorkshire Air Ambulance which landed in the centre of Holmfirth.

West Yorkshire Police said CCTV footage showed the man on his own and leaning over a balcony before slipping and falling.