The Latest: NTSB says crew asleep during fatal boat fire

This photo from video provided by KABC-TV shows divers resuming their search for the final missing victim who perished in a boat fire off the Southern

This photo from video provided by KABC-TV shows divers resuming their search for the final missing victim who perished in a boat fire off the Southern

This photo from video provided by KABC-TV shows divers resuming their search Wednesday, Sept. 11, 2019 for the final missing victim who perished in a

This photo from video provided by KABC-TV shows divers resuming their search Wednesday, Sept. 11, 2019 for the final missing victim who perished in a

A woman relights a candle placed at a memorial for the victims of the Conception dive boat on the Santa Barbara Harbor on Sunday, Sept. 8, 2019 in San

A woman relights a candle placed at a memorial for the victims of the Conception dive boat on the Santa Barbara Harbor on Sunday, Sept. 8, 2019 in San

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 divi

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 divi

FILE - In this Sept. 8, 2019 file photo, investigators check the Truth Aquatics office on the Santa Barbara Harbor in Santa Barbara, Calif. Authoritie

FILE - In this Sept. 8, 2019 file photo, investigators check the Truth Aquatics office on the Santa Barbara Harbor in Santa Barbara, Calif. Authoritie

Authorities walk outside the Truth, a Truth Aquatics-owned dive boat, docked in the Santa Barbara Harbor in Santa Barbara, Calif., Sunday, Sept. 8, 20

Authorities walk outside the Truth, a Truth Aquatics-owned dive boat, docked in the Santa Barbara Harbor in Santa Barbara, Calif., Sunday, Sept. 8, 20

A memorial for the victims of the Conception is seen on the Santa Barbara Harbor in Santa Barbara, Calif., Sunday, Sept. 8, 2019. Authorities served s

A memorial for the victims of the Conception is seen on the Santa Barbara Harbor in Santa Barbara, Calif., Sunday, Sept. 8, 2019. Authorities served s

Authorities work to investigate the Truth Aquatics office on the Santa Barbara Harbor in Santa Barbara, Calif., Sunday, Sept. 8, 2019. Authorities ser

Authorities work to investigate the Truth Aquatics office on the Santa Barbara Harbor in Santa Barbara, Calif., Sunday, Sept. 8, 2019. Authorities ser

FBI agents search the Truth dive boat, a sister vessel to the Conception, as authorities issue a search warrant for the Truth Aquatics' offices on the

FBI agents search the Truth dive boat, a sister vessel to the Conception, as authorities issue a search warrant for the Truth Aquatics' offices on the

FBI agents walk past a memorial for the victims of the Conception dive boat on the Santa Barbara Harbor, as authorities issue a search warrant for the

FBI agents walk past a memorial for the victims of the Conception dive boat on the Santa Barbara Harbor, as authorities issue a search warrant for the

A crowd gathers around a memorial for the victims of the Conception dive boat as FBI's Evidence Response Team agents and other agencies search the Tru

A crowd gathers around a memorial for the victims of the Conception dive boat as FBI's Evidence Response Team agents and other agencies search the Tru

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

11:20 a.m.

The National Transportation Safety Board says all six crewmembers were asleep when a fire broke out in a scuba diving boat off the coast of California, killing 34 people.

The NTSB released a two-page preliminary report Thursday. Authorities have said they were investigating if there was a night watchman on duty at the time.

The report comes a day after divers recovered the remains of the last missing victim, one of dozens who were trapped below deck.

The Coast Guard has released additional safety recommendations in the wake of the Sept. 2 tragedy, such as limiting the unsupervised charging of lithium-ion batteries and the use of power strips and extension cords.

The FBI, Coast Guard and the U.S. Attorney's Office in Los Angeles are conducting a criminal investigation.

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12:06 a.m.

The Coast Guard has issued additional safety recommendations in the aftermath of a fatal boat fire off the Southern California coast that killed 34 people.

The recommendations include limiting the unsupervised charging of lithium-ion batteries and the use of power strips and extension cords.

Officials expect to release a preliminary report from the National Transportation Safety Board on Thursday.

Investigators are delving into the cause of the Sept. 2 fire and working to recover the Conception amid an ongoing criminal probe conducted by the FBI, Coast Guard and the U.S. Attorney's Office in Los Angeles.

Divers have recovered the remains of all 34 victims — 21 women and 13 men ranging from 16 to 62 years old — who apparently died of smoke inhalation as they were trapped below a raging fire.