Here is a timeline of the collapse on Tuesday of Baltimore's Francis Scott Key Bridge after it was hit by the Singapore-flagged container ship Dali. All times are EDT:
01:04 am (0504 GMT). - Loaded with shipping containers, Dali departs from Baltimore's port, headed to Colombo, Sri Lanka.
01:24 am - Dali slowly approaches the Key Bridge, according to video captured by StreamTime Live.
1:24:33 am - Dali appears to suffer a total power failure as all its lights go out.
1:25:31 am - About a minute later, the ship's lights flicker back on. Black smoke starts rising from somewhere aboard the ship.
1:26:37 am - The ship's lights go dark again.
1:27 am - Dali appears to be colliding with one of the Key Bridge's piers. The U.S. Coast Guard receives first report of collision.
1:27:10 am - The ship's lights come back on.
1:28:48 - The roadway of the Key Bridge begins collapsing.
1:29:00 - Most of the bridge's span has plunged beneath the water
1:40 am - Baltimore City Fire Department has dispatched rescue teams for the Patapsco River, with reports of multiple people in the water.
1:50 am - The first fire unit arrives on the scene.
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