A large search and rescue effort is underway in Baltimore, Maryland, following the collapse of the Francis Scott Key Bridge overnight. Surveillance film showed the moment a cargo ship collided with a column supporting the bridge, plunging vehicles and people into the chilly, dark sea. There are more details below.

Around 1:30 a.m. on Tuesday, the Francis Scott Key Bridge, a 1.6-mile span over the Patapsco River, collapsed after being struck by a huge ship. The bridge collapsed into the river in only seconds. The terrifying scene was caught on camera.A search and rescue attempt began almost immediately with personnel seeking for at least seven people, but perhaps up to 20.

“We are in the midst of managing a mass casualty multi agency incident here,” said Kevin Cartwright, the Baltimore City Fire Department’s communications director. “Unfortunately, we understand that there are up to 20 individuals who may be in the Patapsco river as well as multiple vehicles,” he was quoted as saying by CNN. Maryland Secretary of Transportation Paul J. Wiedefeld verified that at the time of the collapse, a construction crew was working on the bridge.

“This is an unthinkable tragedy,” Baltimore Mayor Brandon Scott stated at a press conference Tuesday morning. “This is a catastrophe you cannot imagine. You never expected to see the Key Bridge collapse so dramatically. It seemed like something out of a movie… Our primary goal should be the preservation of life.””The conditions are difficult,” Baltimore County Executive Johnny Olszewski told CNN.

“We’re discussing a deep channel port. It’s 40 to 50 feet of water with powerful currents. The weather is windy, and the water is frigid. And so we are quite concerned about individuals who are in the water, as well as the bridge collapse.” At 9:00 a.m. EDT, two persons had been rescued from the water. One individual was stated to be in “very serious” condition, while the other was allegedly unharmed.US Homeland Security Secretary Alejandro Mayorkas stated there were “no indications” that the accident was intentional.