A man who was working on cherry picker was killed Friday morning at San Francisco's Moscone Center, police said, when his machine was pinned to the wall.
San Francisco Officer Albie Esparza said the man was working on a ramp in the underground parking lot area when his machine lifted up toward the ceiling, and he was caught in between.
He was killed when he came in contact with the ceiling, Esparza said.
The accident was reported about 6:45 a.m.
The Moscone Convention Center Expansion Project issued a statement Friday, saying in part that the employee had come to pick up a aerial work platform, also commonly known as a high reach boom, at Moscone Center and take it back to the rental company.
During the process of removing the machine, the statement read, the man was crushed between the heavy device and a concrete structure.
Paramedics were called but they were unable to resuscitate the man.
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"We want our express our deepest sympathies in this tragic accident," the Moscone statement said. "Our hearts go out to the man, his family and his co-workers."
