UPDATED: Suspected Gas Leak at South San Francisco Biopharmaceuticals Company Prompts Evacuation

UPDATE:

A South San Francisco biopharmaceuticals company was given the all-clear after a suspected gas leak Wednesday afternoon, a company spokeswoman said.

The leak at Onyx Pharmaceuticals was reported shortly after 3 p.m. and employees at 249 and 259 E. Grand Ave. were evacuated, company spokeswoman Lori Melancon said.

Workers at both buildings had reported smelling gas inside, Melancon said.

The employees evacuated to the parking lot and were advised to go off-site, she said.

Melancon said firefighters issued an all-clear at about 4:45 p.m., but most of the company’s employees had left by then.

She said fire crews determined the leak was not on the company’s premises though it is not clear where the gas originated.

The company will resume normal business hours on Thursday, according to Melancon.

A San Mateo County fire dispatcher confirmed fire crews responded to the leak and said that no injuries were reported as of around 3:30 p.m.

ORIGINAL STORY AS FOLLOWS:

Firefighters responded to a suspected gas leak at a South San Francisco biopharmaceuticals company Wednesday afternoon, a company spokeswoman said.

The leak at Onyx Pharmaceuticals was reported shortly after 3 p.m. and employees at 249 and 259 E. Grand Ave. have been evacuated, company spokeswoman Lori Melancon said.

Workers had reported smelling gas inside, Melancon said.

The employees evacuated to the parking lot and were advised to go off-site, she said.

A San Mateo County fire dispatcher said crews were responding to the leak at 249 E. Grand Ave. and no injuries were reported as of around 3:30 p.m.

— By Bay City News Service.

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