The sunken remains of the Volare, a 49-foot cabin cruiser, have been located at the bottom of San Francisco Bay near Alcatraz Island following a tragic incident that killed four of its 20 passengers.Authorities are now assessing the wreckage using an underwater drone to determine if the boat can be raised and if any bodies are still inside.The search for two missing individuals, presumed dead, continues as investigators work to uncover the cause of the capsizing.Survivors reported a sudden wave caused the boat to roll over, but experts suggest a series of cascading failures likely led to the disaster.The wreckage lies at a depth of 130 feet, where human divers cannot safely operate, complicating recovery efforts.San Francisco Police Cmdr.Brien Hoo emphasized the need for specialized equipment to lift the vessel safely.The incident has raised questions about maritime safety and the challenges of recovering large vessels from deep waters.

Authorities have not released the identities of the missing passengers, expressing condolences to the victims' families and thanking the public for their assistance during the search.