An undated handout photograph shows Titan, the submersible that vanished on expedition to the Titanic wreckage but was later found to have imploded, killing its five occupants. OceanGate/Zuma Press Wire/TNSThe 2023 implosion in the Atlantic Ocean of a submersible, which killed five people, could have been prevented, the U.S. Coast Guard said in a report released on Aug. 5.

The company that operated the Titan sub, OceanGate, failed to adhere to its own safety standards and did not encourage employees to raise concerns without fear of retaliation, according to the 327-page report.