Officials described the course of events as standard procedures when a small boat gets too close to a U.S. Navy ship.

CNN: U.S. Navy ship fires at small boat in Persian Gulf

The prosecution has also asked for jail sentences for three police officers, who allegedly had failed to carry out a proper search and Luca Peroni - the son of the boat owner - for not explaining the changing weather patterns on the lake, safety procedures, or safety equipment.

BBC: Lake deaths Briton found guilty