At least 46 people have been killed and dozens more injured in Indonesia following a blaze that tore through a fireworks factory outside Jakarta, police said Thursday, triggering explosions and sending plumes of black smoke into the air.

Many of the charred corpses of victims were found clustered at the back of the factory in an industrial complex in Tangerang, police said, indicating there may have been a panicked rush to flee the flames.

“We are still evacuating victims… there are 46 body bags. The evacuation is ongoing,” Harry Kurniawan, Tangerang Kota police chief said.

The police revised the death toll down to 46 from their earlier figure of 47, but said about 10 people remained unaccounted for.

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A firefighter at the scene said the victims had been burned beyond recognition.

According to  Oni Sahroni “those who died are completely unrecognisable, totally burnt,”.

Also read: 14 People Burnt To Death As Van Caught Fire In Pakistan

Parts of the building collapsed after being gutted by the blaze, which scorched nearby cars and motorbikes. Witnesses reported hearing blasts erupt from the site.

The blaze, which broke out in the morning, was brought under control by late afternoon and authorities were working to recover the victims’ bodies from the building.

Authorities have not yet said how the fire started, but have confirmed it began near the front door and quickly spread.

“Victims were found piling at the back, it seems like they were avoiding the blaze at the front door,” Afinta revealed.

Desperate friends and family thronged a nearby police hospital in Keramat Jati looking for loved ones.

Video footage shot showed victims, covered in bandages, laid out on stretches and others with minor injuries sitting in the hallways or outside.

A factory worker at the hospital in Keramat Jati said the fire erupted in the middle of production.

“I don’t know how it happened, I was working outside of the factory and there were some explosions, four cars exploded and almost all motorbikes also exploded,” Ade, who suffered burns to his arms and legs, said.

The factory part of a complex that borders a residential area had only been operating for six weeks, district government official Toni Rustoni told reporters.

Some relatives of victims have already begun demanding action from the company.

Diana, whose 15-year-old sister was seriously injured in the fire, said the company, Panca Buana Cahaya Sukses, must not ignore the victims.

According to statistics, deadly fires are very common in Indonesia due to poor safety standards that are routinely flouted.

Seventeen people killed when a fire ripped through a karaoke bar on Sulawesi island in 2015. In 2009, a fire killed 20 people at a karaoke bar in Medan, on Sumatra island.