The burned hull of the Conception is brought to the surface by a salvage team, Thursday, Sept. 12, 2019, off Santa Cruz Island, Calif., in the Santa Barbara Channel in Southern California. The vessel burned and sank on Sept. 2, taking the lives of 34 people aboard. Five survived. (Brian van der Brug/Los Angeles Times via AP)

LOS ANGELES (AP) — The Latest on a fatal boat fire off the coast of Southern California that killed 34 people (all times local):

9:45 a.m.

The burned-out wreckage of a boat where 34 people died in a fire has been transported to a naval base in Southern California for further investigation.

Ship-tracking website marinetraffic.com shows the barge that transported the Conception in Port Hueneme, a naval base more than 60 miles (97 kilometers) northwest of Los Angeles.

The Coast Guard would not confirm the location and authorities have only said the vessel would be taken to a secure area as multiple agencies investigate the deadly fire's cause. A criminal investigation is also looking whether the captain or crew were negligent in the deaths of the others.

Five of six crewmembers survived the Sept. 2 fire, while 33 passengers and a deckhand died of smoke inhalation as they were trapped below deck.

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8:53 p.m.

Federal investigators identified a violation of Coast Guard regulations that could trigger criminal charges in the California dive boat disaster that killed 34 people.

The National Transportation Safety Board said Thursday that all crew members on the boat Conception were asleep when the pre-dawn fire broke out Sept. 2 off the coast of Santa Barbara.

The boat was required to have a crew member on roving patrol while passengers slept, according to Coast Guard rules and the boat's inspection certificate.

Experts say not having a lookout could be enough to bring criminal charges under the obscure so-called seaman's manslaughter statute.

The 19th century law carries penalties up to 10 years in prison if a captain or crew were negligent or committed misconduct or neglected their duties.

The burned hull of the Conception is brought to the surface by a salvage team, Thursday, Sept. 12, 2019, off Santa Cruz Island, Calif., in the Santa Barbara Channel in Southern California The vessel burned and sank on Sept. 2, taking the lives of 34 people aboard. Five survived. (Brian van der Brug/Los Angeles Times via AP)
This undated photo provided by Kathleen McIlvain shows Charles McIlvain, left, and his father Clark posing for a photo. Charles died aboard the dive boat Conception during a Sept. 2 fire that killed 34 people. (Kathleen McIlvain via AP)
The burned hull of the Conception is brought to the surface by a salvage team, Thursday, Sept. 12, 2019, off Santa Cruz Island, Calif., in the Santa Barbara Channel in Southern California The vessel burned and sank on Sept. 2, taking the lives of 34 people aboard. Five survived. (Brian van der Brug/Los Angeles Times via AP)
The burned hull of the Conception is brought to the surface by a salvage team, Thursday, Sept. 12, 2019, off Santa Cruz Island, Calif., in the Santa Barbara Channel in Southern California. The vessel burned and sank on Sept. 2, taking the lives of 34 people aboard. Five survived. (Brian van der Brug/Los Angeles Times via AP)
The burned hull of the Conception is brought to the surface by a salvage team, Thursday, Sept. 12, 2019, off Santa Cruz Island, Calif., in the Santa Barbara Channel in Southern California The vessel burned and sank on Sept. 2, taking the lives of 34 people aboard. Five survived. (Brian van der Brug/Los Angeles Times via AP)
FILE - In this Sept. 8, 2019 file photo, FBI agents set a perimeter around the Truth Aquatics office, the California company that owned the scuba diving boat that caught fire and killed 34 people last week, as authorities issue a search warrant for the company and the sister vessels of the Conception dive boat on the Santa Barbara Harbor in Santa Barbara, Calif. Authorities conducting a criminal investigation into the deadly scuba diving boat fire plan to interview previous patrons of the boat company to determine what kind of safety information they were provided during trips, a law enforcement source said. (AP Photo/Christian Monterrosa, File)
FILE - In this Sept. 8, 2019 file photo, investigators check the Truth Aquatics office on the Santa Barbara Harbor in Santa Barbara, Calif. Authorities conducting a criminal investigation into the deadly scuba diving boat fire off the coast of Southern California last week plan to interview previous patrons of the boat company to determine what kind of safety information they were provided during trips, a law enforcement source said. (AP Photo/Christian Monterrosa, File)
FILE - In this Sept. 2, 2019, file photo, provided by the Santa Barbara County Fire Department, a dive boat is engulfed in flames after a deadly fire broke out aboard the commercial scuba diving vessel off the Southern California Coast. Thursday, Sept. 12, brought a disclosure from the National Transportation Safety Board that all six crew members were asleep aboard the Conception on Sept. 2 when the deadly blaze broke out and killed 34 people. (Santa Barbara County Fire Department via AP, File)
FILE - This Monday, Sept. 2, 2019, file image taken from video released by the U.S. Coast Guard shows a Coast Guard Sector San Diego MH-60 Jayhawk helicopter video screen, as crew responds to the vessel
FILE - This Wednesday, Sept. 4, 2019, file photo provided by Santa Barbara County shows divers and support crews from many agencies working the scene of the Conception dive boat fire off Santa Cruz Island, Calif. Federal investigators say all six crew members were asleep when a fire broke out in the scuba diving boat off the coast of California, killing 34 people. (Santa Barbara County via AP, File)
FILE - In this Sunday, Sept. 8, 2019 file photo, agents with the FBI set a perimeter around the Truth Aquatics office, the California company that owned the scuba diving boat that caught fire and killed 34 people last week, as authorities issue a search warrant for the company and the sister vessels of the Conception dive boat on the Santa Barbara Harbor in Santa Barbara, Calif. Federal investigators say all six crew members were asleep when a deadly fire broke out in the scuba diving boat Conception off the coast of California. (AP Photo/Christian Monterrosa, File)
FILE - In tis Sunday, Sept. 8, 2019 file photo, agents with the FBI walk into the Truth Aquatics office, the California company that owned the scuba diving boat that caught fire and killed 34 people last week, as authorities issue a search warrant for the company and the sister vessels of the Conception dive boat on the Santa Barbara Harbor in Santa Barbara, Calif. Federal investigators say all six crew members were asleep when a deadly fire broke out in the scuba diving boat off the coast of California. (AP Photo/Christian Monterrosa, File)