A burst water tank has caused flooding and the partial ceiling collapse of a high street shop in Dorking.
Flooding began at Superdrug, in High Street at around 1.30pm after the tank burst in the former Woolworths shop next door.
The flooding caused part of the ceiling to collapse and around 10 firefighters were at the scene.
Peter Bakker, watch manager at Dorking Fire Station, was in charge of the operation.
He said: "Staff and customers were evacuated and they closed the shop.
"There is danger from the hazard of the ceiling collapsing and there is the risk of a fire from water getting into the electrics as it could cause sparks that could burst into flames."
Superdrug shop assistant Danielle Donoghue said: "Water started coming through the lights over the tills, I got called to go and get a bucket by the time I got back water was coming through into the aisles.
"We got everyone out, as the ceiling was starting to collapse."
Manager Julie Cobbs had to come in on her day off because of the flood.
She said: "We don't know when we will open again until the damage is assessed. The priority was to get the staff and customers out."
Firefighters believe around 20 per cent of Superdrug's stock has been affected.