A MASSIVE fire swept through Weybridge Health Centre last night with flames shooting in to the air and “loud bangs” being heard.
Black smoke was seen billowing from the hospital in Surrey after the blaze took hold just before midnight.
Dramatic photos showed flames erupting in to the air from the hospital with brave firefighters on the scene.
Eight fire engines were scrambled and the third floor and roof were "well alight".
Surrey Fire and Rescue Service said crews would be in place "for some time".
A Surrey Police statement confirmed there were no casualties and no one was injured.
The statement added: "A large number of residents have been evacuated. Roads around the building, including Weybridge High Street, have been closed and are likely to remain so for some time.
"A large number of resources from Surrey Fire and Rescue Service are continuing to tackle the blaze, which is now under control.
"An investigation is under way to establish the cause of the fire which remains unknown at this time."
Locals reported hearing a "huge bang" from at least two miles away moments before the blaze started.
There were another four loud explosions heard, with some locals speculating oxygen tanks were blowing up.
Matt Leisegang, 28, who was evacuated from his home around 100 metres from the blaze, said he heard a "loud bang" and saw the top floor of the building "engulfed".
He said: "It was about 11.45pm when my wife woke me up and said there was a fire at the hospital.
"We heard people shouting outside and went to look through the window. We saw what was happening and ran down to see if we could help.
"That's when I saw the left side of the roof was in flames already.
Read also: more news about incidents in London.
"Within about 15 minutes, the whole of the roof was alight.
"The building is only three storeys, and the top floor was completely engulfed in flames within a short time - that was the remarkable thing, how quickly the fire spread.
"Within about 40 minutes of the fire, the whole of the top floor was gone. I could only see flames."
The chef added: "We were asked by the emergency services to move back - there was a loud bang, an explosion from the gas canisters.
"The firefighters have been brilliant, and I said to my wife that we should make some tea and sandwiches for them but we were told to evacuate before we could do anything.
"Everyone seems to be safe. There are about 30 people in the church, there were some children earlier but they have been sent to stay with relatives.
"We're just thankful nobody seems to have been hurt."
Read also more interesting information on the city site of London.