SAN FRANCISCO -- The body of a construction worker crushed under the wreckage of a demolition gone wrong in San Francisco's Hunter's Point neighborhood this afternoon has been safely pulled from the rubble and is in the custody of the San Francisco medical examiner's office, fire officials said Monday night.

The man, still unidentified, was recovered at about 9 p.m., said San Francisco fire Lt. Ken Smith. There were no reported injuries in the nearly six-hour extrication process.

He was one of three workers pinned under the weight of an idled five-story power plant that toppled at around noon.

The other two workers, also men, made it out alive and are being treated at San Francisco General Hospital with life threatening injuries to their legs, fire officials said.

Their current conditions are unknown.

The metal structure at 1100 Evans Ave. was on the site of a former Pacific Gas and Electric Co. power plant made up of large steel girders and beams that hold equipment and several large boilers, officials said.

Workers were reportedly pulling the boilers down with cables when it abruptly collapsed.