At least 13 people were killed and over 40 others injured after a fire tore through a nightclub in Thailand early Friday.

An official from the Sawang Rojanathammasathan Rescue Foundation told AFP that the fire broke out around 1.00 am at the Mountain B nightspot in Chonburi province’s Sattahip district and was fastened by flammable acoustic foam on the walls. The firefighters took around three hours to bring the blaze under control.

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The service said four women and nine men, all believed to be Thai, were found dead, mostly near the entrance and in the bathroom. Their bodies were severely charred. 

“There is not death related to foreigners,” police lieutenant colonel Boonsong Yingyong of the Phlu Ta Luang police station, told AFP by phone.

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Provincial police chief Maj. Gen. Atthasit Kijjahan told PPTV television news that the pub’s owner and staff were giving statements at the police station and the police forensic team would be collecting evidence at the scene. 

Several witnesses described seeing smoke and fire on the ceiling near the venue’s stage followed by the sound of explosions.

“The fire started at the top right corner of the stage,” a witness identified only as Nana told PPTV. “The singer must have seen it too, so he shouted ‘fire’ and threw away the microphone.”

“I am quite shocked. But I am lucky that when I saw the fire, I could get myself together and get out of there,” she said, adding that she saw several pub security guards with their clothing on fire.

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A waitress at the venue, Thanyapat Sornsuwanhiran, also told Thai television reporters that she saw smoke near the stage.

“I shouted ‘fire’ to customers, and I was near the doors, so I directed them out. I kept shouting ‘fire, fire’ and the security guards were also helping lead people out,” she said.

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Meanwhile, a video from the scene shared by the rescue service showed people fleeing the club screaming, a blaze ranges in the background.