A second sinkhole has appeared on a historic Oxford street in the space of eight months.
It was discovered outside Boswells department store on Broad Street on Monday evening.
"Oxford Direct Services, on behalf of the county council, and Thames Water are urgently investigating a sinkhole," said a city council spokesman.
The hole, near the Grade I listed theatre, was about 12in (30cm) wide on the surface but stretched for about a metre in either direction below.
Thames Water said it was too early to say whether it was related to the previous sinkhole.
It added the road was likely to remain closed "for several days".