At least 13 killed, dozens injured as fire engulfs Thai nightclub - CNN

Somjai said investigations into the cause of the fire were now underway.

People couldn't escape

Nattanit Pikulkaew said she was at the nightclub to celebrate her brother's birthday and was near the front of the stage when a woman ran in shouting that the roof was on fire.

Seconds later, she saw that the speakers on stage were in flames.

"Customers come to drink and dance," he said.

He was not at the nightclub when the fire broke out but said the front door was the only entry and exit point for customers.

Musicians would enter and exit via the back door, which would be locked during performances, he said.

He added that the nightclub's ceiling was lined with acoustic panels which were highly inflammable.

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