The ship which crashed into and collapsed Baltimore's Francis Scott Key Bridge had lost power before the collision and was unable to steer away, according to an analysis by John Konrad, CEO of maritime news site gCaptain.
According to the analysis, "the ship’s lights went out twice before the collision, indicating possible issues in the engine room. Despite the quick restoration of lighting, this suggests a full blackout occurred, prompting the emergency generator to restore basic electrical services and lighting."
As "ships are not required to have tugboat escorts when passing under the Francis Scott Key Bridge so they have limited ability to slow down on their own when they lose power and can not put the propeller into reverse."
This is a developing story, as many are still missing from the bridge collapse.