News Canadian aircraft detects underwater noises during search for missing submersible, US Coast Guard says: Updates June 20, 2023June 21, 2023Claire Thornton and Jeanine Santucci, USA TODAYComments Off on Canadian aircraft detects underwater noises during search for missing submersible, US Coast Guard says: Updates The submersible had a 96-hour oxygen supply when it went to sea at about 6 a.m. Sunday. Rescuers are working to locate the vessel. Live updates.