Twitter users shared shocking video footage of the cruise ship crash in the port of Cozumel.

MSC Cruises said the 2,679-passenger Opera, a 54-meter high and 275-meter long liner which dwarfed the Venice skyline, was approaching a terminal on the Giudecca canal when it hit the dock and a nearby ferry.

The Oosterdam was coming into berth Saturday morning when it rear-ended the Nieuw Amsterdam, which was already docked.