RAMSEY’S main street The Great Whyte has been closed after part of the road surface collapsed.
The road, between High Street and Newtown Road, has been shut off while emergency investigations are carried out on a section of culvert which runs under the road.
A county council spokesman said: "Cambridgeshire County Council Highway Engineers are investigating the cause of a depression in the road which has appeared suddenly.
"The road will be re-opened as soon as possible, depending on the results of the investigations."
Diversions have been put in place.