The Coast Guard is searching near the Mount Hope Bridge after an empty dinghy was found Friday morning, reports The Providence Journal.
Police and fire are reportedly searching the area for at least 30 minutes, according to residents nearby.
An empty small boat was found around 8:30 a.m. off of Common Fence Point, according to Capt. Michael O'Brien, spokesman for the Portsmouth Fire Department.
Rescue crews believe the boat did have someone aboard at some point, O'Brien said.
A search began shortly thereafter. The Coast Guard is now asking for the public's assistance in the search.
Boats from at least six communities are aiding in the search, including Portsmouth, Bristol, East Providence, Warwick, Tiverton and Swansea Fire Departments.
Search boats belonging to the Coast Guard and Department of Environmental Management are also in the water for the search.
Crews from Portsmouth, Prudence Island and Bristol are conducting a shore search. The Coast Guard helicopter has also been conducting an aerial search.
Further information is unknown at this time.
Check back later for more on this developing story!