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.