Man killed on escalator at SF transit station BART

(04-19) 19:44 PDT SAN FRANCISCO -- A man who witnesses say fell while attempting to walk up a downward-moving escalator died in downtown San Francisco on Tuesday.

Emergency responders arrived at 1 p.m. at the bottom of the western entrance to Powell Station at Hallidie Plaza, San Francisco police Sgt. Michael Andraychak said.

They performed CPR on the man, who Andraychak said was about 50 years old, before transporting him to San Francisco General Hospital, where he was pronounced dead.

"He possibly got caught in the machinery and was carried downward. At some point, his clothing became caught in the machinery as well," Andraychak said. "We don't know if he suffered a medical emergency."