The Baltimore port handled 847,158 autos and light trucks in 2023, the most of any U.S. port for the 13th straight year, according to a state of Maryland website. The port also handled large volumes of imported sugar, gypsum and coffee, as well as exported coal. Credit: Al Drago/Bloomberg The Baltimore port handled 847,158 autos and light trucks in 2023, the most of any U.S. port for the 13th straight year, according to a state of Maryland website. The port also handled large volumes of imported sugar, gypsum and coffee, as well as exported coal. Credit: Al Drago/Bloomberg

(Bloomberg) — A major commuter bridge in Baltimore collapsed after being rammed by a container ship, causing vehicles to plunge into the water and threatening chaos at one of the most important ports on the U.S. East Coast.

The Maryland Transportation Authority issued an alert on social media asking drivers not to use Interstate 695. Kevin Cartwright of the Baltimore City Fire Department described it as "a mass casualty, multi-agency incident" in an audio interview with CNN, adding as many as 20 people could be in the water.

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