WINTHROP, MASS. (WHDH) - At least one person was rushed to the hospital after a boat sunk in the water off Winthrop on Thursday afternoon, officials said.

Emergency crews were called in around 4:30 p.m. after a 25-foot vessel capsized off the coast of Yirrell Beach.

“He was out almost in the Boston Harbor, the shipping channel,” said Winthrop Harbormaster Arthur Hickey. “It was very choppy out there today. There were some nice three to four-foot rollers in the area. I don’t know if that had anything to do with causing his boat to roll.”

The 57-year-old man, who was rescued by good Samaritans, was transported to an area hospital with non-life-threatening injuries and signs of hypothermia, according to the Hickey.

He told rescuers he was in the water for more than 30 minutes.

The Harbormaster told 7NEWS those good Samaritans likely saved the man’s life.

“Another vessel had pulled up — I call them good samaritans because these guys stopped right away and pulled him on board,” he said. “They had a blanket they put around him, his life jacket was saturated, full of water, pretty heavy. So, he wasn’t going to last much longer there.”

It’s not clear what caused the boat to sink.

There were no additional details immediately available.

This is a developing news story; stay with 7NEWS for updates online and on-air.

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