Fire officials say a small powerboat caught fire and sank off India Point Park in the Providence River.
Acting Providence Battalion Chief Stephen Capracotta says the flames engulfed the boat around 9 p.m. Monday.
Providence and East Providence Firefighters extinguished the blaze and most of the powerboat sank below the surface just off rocks along the waterfront.
The Coast Guard says the boat's owner wasn't on board during the fire. No injuries were reported.
The cause of the fire is under investigation.