Two people were hospitalised in a “medical emergency” after a building collapsed on a man in Watford.

An air ambulance and two ground ambulances rushed to Armand Close, off Nascot Wood Road, after the emergency was reported to the East of England Ambulance Service at around 4.39pm yesterday (May 23).

An outbuilding had collapsed, Hertfordshire Constabulary have confirmed, and officers and Herts Fire and Rescue were able to safely free a man who had become trapped.

He was then taken to hospital by one of the ground ambulances with injuries that were not believed to have been life-threatening.

One person was taken to Watford General Hospital and another was taken to St Mary's Hospital.

Police have said the collapse was not an industrial accident, with the construction work understood to have been “DIY”.

The East of England Ambulance Service confirmed two ambulances, an ambulance officer, and Essex and Herts Air Ambulance were all in attendance.

Update: Herts Fire and rescue has confirmed five engines were initially mobilised to reports of a collapsed building and a trapped person, but only two eventually attended.

A steel framed outbuilding under construction had partially collapsed while it was being built.

One person suffered a head injury, while the other suffered a leg injury.

Crews left the scene at 6.30pm.