A gas leak in San Francisco's South of Market neighborhood has prompted several homes and businesses to be evacuated, a fire department dispatcher said.
The leak was reported near Fourth and Folsom streets at about 12:10 p.m., PG&E spokesman J.D. Guidi said.
A construction crew apparently struck a six-inch gas main in the area, Guidi said.
Utility crews were called in by the fire department at about 12:30 p.m. and were responding to the emergency, he said.
The fire department was working to evacuate the area within a couple of blocks, a dispatcher said.
No injuries were reported, and it was not immediately clear how many people or buildings had to be evacuated, the dispatcher said.
As of 1:15 p.m. the gas was still leaking and crews had no estimate as to when it would be capped, Guidi said.
Traffic in the area has been disrupted and motorists were advised to avoid the area.