A 1.6-mile-long bridge in Baltimore, Maryland, has collapsed after it was hit by a cargo ship, sending several vehicles into the water.
Rescue workers were searching for at least seven people believed to be in the water, said Kevin Cartwright, the director of communications for the Baltimore Fire Department.
Mr Cartwright said: “Our focus right now is trying to rescue and recover these people.”
He added that it was too early to know how many people were on the bridge but called the collapse a “developing mass casualty event”.
Videos from a live stream of the bridge showed several of its spans collapsing after it was struck by the cargo ship.
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