More than 100 firefighters battled a fire in Seattle aboard a fishing vessel that appeared on some episodes of TV's "Deadliest Catch," authorities said.

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No injuries were reported in Sunday morning's three-alarm blaze on the Arctic Dawn, a former crabbing ship now used as a salmon-fishing vessel, and the fire was kept from spreading to other nearby boats, KOMO-TV, Seattle, reported.

The cause of the fire, which was confined above the Arctic Dawn's water line, is under investigation, the TV station said.