This is the heart-stopping moment the floor of a nightclub in Tenerife collapsed - injuring 40 people including two seriously hurt Brits.

Footage shows a drag act performing on a small stage at the front of the Butterfly Disco Pub in Playa de las Americas when suddenly the stage plummets down into the basement.

It takes the surrounding floor and spectators with it, reports the Mirror.

The performer, a blonde in a red dress and heels, can be seen trying to jump away as the floor collapses around her.

People can be heard shouting out in shock and pain before the footage abruptly ends.

The recording, first published by local paper La Opinion de Tenerife , shows there was absolutely no warning or danger signs before the dramatic event.

The casualties include two British men: a 57-year-old who suffered head injuries and a 59-year-old who broke his leg when the floor caved in at the popular gay nightspot at 2.30am on Sunday morning.

The wounded, aged between 20 and 60, were taken to hospital with injuries including broken ankles, severe fractures, cuts, bruises and back and hand wounds.

The 112 emergency service is reporting that an area of 43sq ft gave way and the people inside plummeted into the basement.

An army of medics and ambulances was on site until 6am ferrying the wounded to hospital.

The Butterfly Disco Pub is open from 11pm to 6am and its website says: ‘The Butterfly nightclub has two larges spaces. In the main space you’ll hear the greatest gay hits.

‘In the second room there is a stage where every night there is a show.’

A spokesman for the club said he was still waiting for information on the nationalities of those caught up in the drama.

He said: ‘We get a lot of foreign visitors including people from Britain.

‘I helped to clear the club because our main concern was making sure as many people as possible got out safely and after that I don’t know what happened inside.

‘The collapse affected part of the stage area and part of the floor.

‘I don’t want to start talking about what might have gone wrong before we speak properly to the police and lawyers and they are able to investigate what had happened properly.’

An investigation into the incident, which is being coordinated by a local court, is now underway.