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.
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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.