A blast in the New York Central Park severed the foot of a young man, who was not identified, a report in the New York Daily News said.
The New York Police Department's bomb squad was investigating the area of the park where the incident occurred.
The report cited witnesses as saying that the victim stepped on a device or fireworks, causing the blast.
His foot was "all but gone," another witness said.
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Police said they were responding to an "amputation incident" and the victim was rushed to a local hospital.
Witness John Murphy, 53, said he tried to keep the young man conscious following the explosion.
"I saw his friends standing there panicking. I saw the young man laying on the grass. His foot was all but gone. His friends claimed he was walking down the rocks and he stepped on it. It looks like there was an explosion," Murphy said in the report.
Theincident occurred just a day ahead of the American Independence Day holiday on July 4, atime when the city isinundated with touristsfrom allover the world.
Variousfirework displays areplanned acrossthe city as well as the country tocommemorate the holiday.