How Baltimore Bridge In US Collapsed Into Water After Being Hit By Cargo Ship (VIDEO)

Baltimore's Francis Scott Key Bridge came crashing down Tuesday after it was struck by a large cargo ship, causing a possible mass casualty incident that was all caught on video.

Check out this stunning footage of the vessel plowing into the steel, arch-shaped bridge, which suddenly collapsed into the Patapsco River and broke into pieces right before our shocked eyes.

Baltimore Mayor Brandon Scott called it an "unthinkable tragedy" that looked like something out of an action movie.