Brazil Pol Maj Cleberson Braida told local news media that the 245 bodies were brought for identification to a gymnasium in the city of Santa Maria.
That toll apparently would make it the deadliest nightclub fire in more than a decade.
Braida said the club had only one working exit, and the majority of victims died trampled in an attempt to flee.
The cause of the blaze was still under investigation but authorities told local reporters that fireworks, perhaps shot off by the band, erupted in the midst of the performance and one hit the roof.
Michele Schneid, a 22-year-old cashier, told local news media that people began to shout “Fire!” setting off the stampede.
“Many people ran for the bathrooms and wound up dying suffocated,” he said. – Bangkokpost
Watch the raw video by AP below from the scene of the fire.