Four missing after Australian army helicopter ditched into waters off Queensland

Image of an Australian Army MRH-90 Taipan helicopter (Bradley Richardson/ADF via AP)

Four air crew members were missing after an Australian army helicopter ditched into waters off the Queensland state coast during joint military exercises with the United States, officials said.

The MRH-90 Taipan helicopter went down near Hamilton Island, a Great Barrier Reef tourist resort, at about 10.30pm local time on Friday, defence minister Richard Marles said.