2023 titan submersible incident
On June 18, 2023, 740 kilometers off the coast of Newfoundland, Canada, the Polar Prince ship chartered by OceanGate lost contact with the Titan submersible 1 hour & 45 minutes into its dive to the wreckage of the RMS Titanic, but didn't call for help until 8 hours later, after the sub was supposed to return. Multiple government agencies from the United States and Canada were involved in a massive search spanning four days and over 25000 square kilometers. By June 22, the date when the emergency oxygen was predicted to be depleted, an ROV had located debris which was confirmed to be part of the sub, and later had been determined that the vessel had imploded. All 5 people onboard, including OceanGate's CEO have been declared dead. Subsequent investigations revealed the vessel was practically doomed from the start, due to poor design and ignorance by the company's CEO, including him firing an expert for telling him his vessel was not seaworthy and previously saying things that essentially amounted to "screw safety."