The cruise ship MSC Opera loses control and crashes against a smaller tourist boat at the San Basilio dock in Venice, Italy June 2, 2019. A towering cruise ship collided with a dock and a tourist boat in Venice on Sunday, injuring four people and reigniting calls for large vessels to be banned from the lagoon city.

REUTERS/Manuel Silvestri 

A boat is seen after a crash with MSC Opera at San Basilio dock in Venice. 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 passenger terminal on the Giudecca canal when it hit the dock and a nearby ferry after a technical problem.

REUTERS/Manuel Silvestri 

San Basilio dock is pictured after MSC Opera cruise ship crashed in Venice. Pino Musolino, chairman of the northern Adriatic Sea port authority, said four people had suffered minor injuries in the crash. Emergency workers said the cruise ship appeared to have lost control after a steel cable that tied it to a tugboat snapped.

REUTERS/Manuel Silvestri 

A boat is seen after a crash with MSC Opera, at San Basilio dock in Venice. Local media said the four injured were female tourists from the United States, Australia and New Zealand aged between 67 and 72.

REUTERS/Manuel Silvestri 

The cruise ship MSC Opera loses control and crashes against a smaller tourist boat at the San Basilio dock in Venice. REUTERS/Manuel Silvestri 

MSC cruise ship is seen behind the Marittima port after a crash at the San Basilio dock in Venice. REUTERS/Manuel Silvestri 

MSC Opera cruise ship is seen after a crash in San Basilio dock in Venice. REUTERS/Manuel Silvestri 

Members of "No grandi navi - No big ships" movement protest in front of the MSC Opera cruise ship. REUTERS/Manuel Silvestri 

The cruise ship MSC Opera loses control and crashes against a smaller tourist boat at the San Basilio dock. REUTERS/Manuel Silvestri 

A boat is seen after a crash with MSC Opera at San Basilio dock in Venice. REUTERS/Manuel Silvestri 

The cruise ship MSC Opera loses control and crashes against a smaller tourist boat at the San Basilio dock in Venice. REUTERS/Manuel Silvestri 

A boat is seen after a crash with MSC Opera at San Basilio dock in Venice. REUTERS/Manuel Silvestri 

MSC cruise ship is seen after a crash, at the San Basilio dock in Venice. REUTERS/Manuel Silvestri