PHUKET, Thailand -- The search for dozens of mostly Chinese tourists missing after a storm capsized their diving boat off the resort island of Phuket was ended Friday, with authorities saying it would resume Saturday morning.

A navy deputy commander, Charoenpol Kumrasri, said early Friday that rescuers hoped survivors could still be found in the boat, which sits about 98 feet below the surface. He said about 30 navy divers would be sent to take part.

Thai authorities said on Friday that the death toll had climbed to 33, with 23 still missing.

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Navy official Narong Aurabhakdi said some of the bodies were found by divers who entered the wreck Friday and others were floating in the water.

Rescued people sit on a fishing boat after a boat they were travelling in capsized off the tourist island of Phuket, Thailand July 5, 2018 in this still image taken from video. REUTERS

The boat was carrying 105 people, including 93 tourists, 11 crew and one tour guide when it toppled in 16-foot-high seas.

The incident comes as rescuers, also led by Thai navy divers, struggle to extract 12 boys and their soccer coach from a flooded cave in the country's far north, where they've been trapped since June 23.

Phuket Gov. Norraphat Plodthong said Thursday night that 48 passengers were rescued from the boat, with 49 unaccounted for. Police previously said 90 people had been rescued from the boat and just seven were missing. The reason for the discrepancies was not clear.

Another boat also overturned off Phuket on Thursday. Officials said all 42 on board have been rescued.

Jin Yilin, consul-general of the Chinese Embassy in Thailand, said a delegation from the Chinese Foreign Ministry is on the way to Thailand.

Thai media showed photos of rescued people in large rubber life rafts at sea, with fishing boats and churning water in the background. The images also showed survivors being lifted from the rafts and sitting in life jackets amid ropes on the deck of what appears to be a fishing trawler.

Phuket officials had earlier issued a warning of severe weather until Tuesday, including heavy rain and winds.

"All agencies are co-operating in their search at this time," Norraphat said. "We have given warnings ... but the winds are strong."

He said officials would consider whether to ban boats from going to sea during strong winds.

Thai PBS television reported late Thursday that 12 boats with 263 passengers in all had been forced by the weather to stay docked at Racha island, a popular diving spot about an hour's boat ride from Phuket.

They said they were providing food, shelter and water to the people, and if the weather did not clear, larger boats belonging to the navy would be sent to retrieve them.

The Thai incidents came after an overloaded boat carrying illegal Indonesian immigrants capsized in bad weather off Malaysia's southern Johor state late Sunday.

The Malaysian coast guard said Friday that 25 people, including a woman, have been rescued. Ten others, including four women, were found dead. Rescue operations involving 150 personnel are ongoing for another nine people believed to be still missing.

Such tragedies are not uncommon in Malaysia. Many Indonesians are willing to risk their lives by travelling on boats believed to be old and unsafe to work in Malaysia illegally, or to return to their hometowns.