Video shows duck boat flipped over while exiting Charles River in Cambridge, 6 people injured

Video shows a duck boat filled with people flipped over while exiting the Charles River in Cambridge on Saturday. 

The boat had originally broken down while in the water, forcing another to tow it out, according to WBZ-TV's Penny Kmitt, who was on board the other boat at the time. 

While exiting the river in the Lynch Family Skate Park just after 3 p.m., the rope towing the boat snapped, sending the duck boat backward before it tipped sideways. There were 32 people on the boat at the time, according to Cambridge Police. Witness Gwyn Svec, who was visiting from Ohio, said that the boat hit the rocks on one side of the ramp before careening into another. 

"No seat belts on that thing, so everyone kind of tumbled onto each other," Svec explained. "We heard just one scream."

Massachusetts State Police said that everyone was accounted for, but six people were injured. Two people had serious injuries, and four had minor injuries, police said. 

Svec said it was then "silent" after it tipped over, before people sprang into action to help. 

"It was creepy, eerie, scary," Svet explained. "Our boat driver rushed off the boat to help them."

Cambridge Fire and State Police are on scene. There is no more information available.