A Midtown construction worker suffered critical injuries Saturday afternoon after a piece of concrete landed on his head. According to authorities, the man, whose name has not been released, was knocked unconscious and rushed to Bellevue Hospital following the accident.

A spokesman for Tishman Construction told the Daily News that the worker had been on the 20th floor of 317 Madison Avenue when he was struck by a heavy piece of concrete debris at 2:30 p.m. yesterday. Tishman is currently working on the building, along with contractor Waldorf Demolition.

An FDNY spokesperson told Pix11 that due to the building's power being shut off, the unconscious man was lowered 18 floors down through a shaft in the building before being rushed to Bellevue.

Two construction workers were hurt at the same site last July when a ceiling collapsed above them. In that incident, one worker sustained life-threatening injuries.