#usatoday #aircraft #australia #news br br 3 U S Marines killed in Osprey aircraft crash in Australia short #news #usatoday #viralvideobr br br 3 U.S. Marines killed in Osprey aircraft crash in Australiabr br At least three U.S. Marines were killed Sunday when an Osprey aircraft carrying 23 personnel crashed on a north Australian island during a training exercise, U.S. military officials said.br br Five others were transported to a local hospital in serious condition. Northern Territory Chief Minister Natasha Fyles said Sunday morning that an emergency response was underway to triage the victims and take them to local hospitals.