Buildings have been evacuated and part of a high street in Surrey has been closed after reports of a sink hole.
Police have closed Godstone High Street between Oxted Road and Bletchingley Road.
A 100m (328ft) cordon has also been put in place.
The road is likely to remain closed for an extended period of time, police added.
A small number of buildings have been evacuated as a precaution while the emergency services respond, they added.
“Please avoid the area and use alternative routes,” a Surrey Highways spokesperson said.
SES Water said it was aware of a burst water main in Godstone High Street in the early hours of Tuesday morning, which was affecting water supply to homes in the area.
Teams had been deployed to carry out urgent work, an SES Water spokesperson said.
“We’re really sorry for the disruption this is causing and are doing all we can to resolve the situation as quickly as possible,” they said.