A five-story hotel in China doing duty as a coronavirus quarantine center collapsed Saturday, trapping 70.

The Xinjia Express Hotel, in Quanzhou City on the southeast coast, caved in at 7:30 p.m. local time.

More than 700 rescuers worked throughout the night, combing through the rubble.

By early Sunday, at least 34 had been rescued; no deaths had been reported.

The 80-room hotel was housing people who came from other regions badly hit by the disease.

“I was at a gas station and heard a loud noise. I looked up and the whole building collapsed. Dust was everywhere, and glass fragments were flying around,” a witness said in a video posted on the Miaopai streaming app.

“I was so terrified that my hands and legs were shivering.”

A woman going only by her surname, Chen, told the Beijing News that her relatives, including her sister, had been under quarantine at the hotel. They had been scheduled to leave soon after being isolated for two weeks.

“I can’t contact them, they’re not answering their phones,” said Chen, who is under quarantine at another hotel. “I’m very worried, I don’t know what to do.”

People online demanded an investigation into how the hotel, built in 2018, could have collapsed.