NEW YORK -- Service on the R and N subway lines in Brooklyn was restored to normal early Tuesday after having been affected by a street collapse in Bay Ridge that swallowed a sport utility vehicle on Monday.

The SUV collapsed into a large sinkhole after a water main break caused the street to give way, authorities said.

Images: SUV Swallowed By Sinkhole

The driver of the SUV, who was not seriously injured, exited the car on her own and later went to a local hospital to be treated for shock, said Fire Department spokesman Brian Conlon.

The vehicle, pitched head first with the rear poking out the 12-foot-wide hole, came to rest on top of a gas main, which was capped off by KeySpan Corp. Workers had removed it by the early afternoon, said Andrew Troisi, a spokesman for the Office of Emergency Management.

The damage to Fourth Avenue in Bay Ridge was probably more extensive than was visible, said Ian Michaels, a spokesman for the Department of Environmental Protection.

"It's unlikely that the only part of the roadway that was damaged was that car-shaped hole," he said, adding that water seeping from the 8-inch pipe could have been washing away dirt beneath the roadway for days.

Emergency contractors would break up the road to determine the extent of the damage, Michaels said.

Water from the main break rushed into the subway system beneath the road collapse, suspending service on the R subway line along Fourth Avenue between 36th and 95th streets.