At least 6 people injured after Boston duck boat overturns near entrance of popular tourist attraction

A duck boat overturned Saturday at a popular tourist attraction in Boston, Massachusetts, injuring at least six people and prompting a major emergency rescue response.

The boat tipped on its side at a Cambridge boat ramp near the entrance to the Charles River, state police told Fox News Digital. None of the passengers wound up in the water, police said.

The Cambridge Police Department (CPD) said some of the injuries were classified as minor, with two considered "more serious."

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Everyone aboard the vessel has been accounted for, according to Cambridge fire officials.

State police confirmed its troopers and the Marine Unit responded to the scene, alongside the Cambridge police and fire departments.

It is not immediately clear what led to the crash.

The replica WWII amphibious vehicle is part of a fleet operated by Boston Duck Tours, a city mainstay that has conducted sightseeing tours of Boston's historic and notable sites on land and sea for over three decades.

Since the incident happened directly at the entrance to the Charles River, Massachusetts State Police will lead the investigation.

The duck boats have been used several times in recent years to parade the region's numerous championship teams through Boston, including the New England Patriots six times, the Boston Red Sox four times, the Boston Celtics twice, and the Boston Bruins in 2011.

Boston Duck Tours did not immediately respond to Fox News Digital's request for comment.