The Coast Guard received a report from local dispatch of an unmanned personal watercraft going in circles on the Delaware River near Philadelphia at approximately 1 p.m. on Friday.
A witness reported seeing a man ejected from the personal watercraft. The man attempted to swim back to the boat, but went under and was not seen resurfacing. He wasn't wearing a life jacket, according to the witness.
A search effort is being led by Coast Guard Sector Delaware Bay in Philadelphia. New Jersey State Police personnel are assisting with the investigation. Numerous surface assets from federal, state and local government agencies are involved in the rescue effort, with helicopter crews also searching.
Anyone with information on this case is asked to contact Sector Delaware Bay at 215-271-4940 or on VHF-FM Channel 16.