HINGHAM, MASS. (WHDH) - Two boats collided in Hingham Bay Friday afternoon, fire officials confirmed.

Flying above the scene, SKY7-HD spotted a damaged sailboat and a motorboat. The sailboat was mostly submerged underwater.

Two people were taken to South Shore Hospital with serious injuries, as sources say they were struck by the motorboat’s propeller. They were then transferred to Massachusetts General Hospital in Boston.

Police boats and a towboat were seen in the water at the crash scene. The U.S. Coast Guard also responded to the scene.

Firefighters stood by on shore in Weymouth as the injured passengers were brought over.

Investigators are trying to determine what caused the crash.

“When a sailboat is under sail, it always has the right of way over a powerboat, and a powerboat has to give way to a sailboat,” said Dennis Hines, a fellow boater. “Why? Of course because of the maneuverability factor.”

The boats involved in the crash were later towed to shore.

No additional information was immediately available. The crash remained under investigation Friday evening, now led by the Massachusetts Environmental Police and Weymouth police.

“Usually you don’t see collisions. Collisions are usually low-speed collisions,” Hines said.

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

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