A portion of the Francis Scott Key Bridge in Baltimore has collapsed after a large boat collided with it early on Tuesday morning, sending a number of vehicles into the water below. At about 1.30am, a vessel crashed into the bridge, catching fire before sinking, according to a video posted on X. ‘All lanes closed both directions for incident on I-695 Key Bridge. Traffic is being detoured,’ the Maryland Transportation Authority posted on X. The Baltimore mayor, Brandon M Scott, and the county executive, Johnny Olszewski Jr, said emergency personnel were at the scene and rescue efforts were under way