Officers were called to the park's boat ramp at about 11:35 a.m. for a report of gunfire, police said. The victim received treatment at the scene before being transported to Rhode Island Hospital, where he was listed with serious injuries.

Police said multiple people of interest have been detained in connection with the investigation. No charges had been announced as of Wednesday afternoon, and authorities did not identify the victim or describe a possible motive.

The shooting occurred at a waterfront park that serves as a popular gathering spot for residents of the Riverside neighborhood and nearby communities, offering a boat launch and shoreline access along the Providence River. The midday timing of the gunfire — in daylight, at a public recreation area — is likely to heighten concern among neighbors about safety in the city's parks.

Detectives are continuing to investigate and are asking anyone with information to contact the East Providence Police Department at 401-435-7600.

This is a developing story and will be updated as more information becomes available.