A "MASSIVE" sinkhole has appeared in Maple Road, Redhill.
Police have set up a cordon around the large pothole, which appeared at around 2pm and was described by one firefighter from as 30 feet deep.
The closure of the road, which joins the A23 Brighton Road with Woodhatch Road, is expected to cause long delays during rush hour.
A firefighter from Reigate station told the Mirror: "It just opened up. We had to go as safety to make sure it didn't rupture the gas main."
Surrey County Council workers are currently at the site near the Earlswood treatment works assessing the damage.
The resident added: "I spoke to a policeman who said, 'It's unsafe, we don't know if it will expand or get any deeper'.
"It's absolute chaos."
A police spokesman said: "Surrey Police attended Maple Road in Earlswood after substantial damage was caused to the road.
"Officers attended at around 1.45pm to put a closure in place to protect motorists and members of the public.
5.30pm UPDATE: A Surrey County Council spokeswoman says workers have made the area safe. Thames Water officials will be on the scene shortly to assess the damage. The sinkhole appears to be connected to a sewage issue, she added.
