Eyewitnesses said three men were climbing a rock structure in the park when the explosion went off, with one of them suffering serious leg injuries.
Paramedics have said that the victim is facing a “possible amputation”.
The area was cordoned off and a sniffer dog sent into the area to search for explosives.
Central Park explosion: Man in critical condition in hospital after he steps on explosive device
Police said the blast was probably caused by fireworks, given that it took place during the Fourth of July weekend.
Fireworks? Preposterous! Fireworks are illegal in NYC!