The decision does not signal that Aucoin, who commands the American 7th Fleet, was responsible for four recent incidents involving ships under his command.  However, the move follows the US Navy's tradition of removing commanders when confidence in them has been lost, reported the Wall Street Journal. 

"An expedited change in leadership was needed," an unnamed official told Reuters on Tuesday, hours before Aucoin was formally relieved of duty. 

The hole on the ships left rear side is about 6 meters (20 feet) long

'Pause' for investigation

Even before the string of collisions, Aucoin had been scheduled to step down in September and be replaced by Phillip Sawyer, the deputy commander of the Pacific Fleet.  The Asia-oriented 7th Fleet is part of the US Pacific Fleet. 

The US Navy announced a wide-reaching probe after Monday's collision and ordered its top brass to prepare for a brief "pause" in global operations while the issue is investigated.