An Australian submarine has used a new super torpedo to sink an American warship off Hawaii.
The Courier-Mail reports HMAS Waller fired the heavyweight Mark 48 torpedo, which the U.S. and Australian navies say is the world's deadliest, during war games this week.
Defense Minister Joel Fitzgibbon said the torpedo had been jointly developed by Australia and the United States and was used in the planned sinking of a retired U.S. warship.
"This represents the first new heavyweight torpedo warshot to be fired by either Navy. Just as significant is the fact that the torpedo was assembled in Australia," Fitzgibbon said.