Baltimore city, Maryland.
Vw Pics | Universal Images Group | Getty Images
The Francis Scott Key Bridge partially collapsed at 1:35 a.m. local time on Tuesday, a Baltimore City police spokesperson said.
Workers may have fallen in water, the police force added.
“All lanes closed both directions for incident on I-695 Key Bridge. Traffic is being detoured,” the Maryland Transportation Authority said.
The U.S. Coast Guard did not immediately respond to a CNBC request for comment.
This breaking news story is being updated.