A mum died after molten caramel suddenly gushed into a huge tank she was cleaning at a confectionery factory in Russia.

Natalia Nemets, 36, is believed to have "boiled alive" in the appalling accident at Stary Oskol, in the Belgorod region.

Shocked workers saw only her legs poking out of the caramel in the tank but they could do nothing to save her.

"She was cleaning the mixer when the caramel suddenly began to flow into the bowl," explained a female colleague.

"She got boiled alive, this is true.

"The caramel was removed from the giant bowl and only then was her body was taken out."

Slavyanka confectionary factory in Russia (
Image:
social media / east2west news)

Newspaper Komsomolskaya Pravda reported her colleagues noticed she was not at her place in the factory.

"Next moment they noticed her legs visible from the bowl with boiling caramel," stated the report.

"She did not cry, no other noise was heard.

"Nobody could explain how it could happen.

"Natalia did not have a single chance to survive.

"Besides the fact that it was boiling caramel, in the bowl there are moving blades that constantly mix the caramel."

Natalia fell into a giant tank she was cleaning (
Image:
social media / east2west news)

While cleaning the tank she fell in and the caramel starting gushing in to the mixer.

"Two version are being considered now - because of the high air temperature in the working room Natalia fainted and somehow fell into the bowl, " said the newspaper.

"The second version is that she stumbled.

"A labour commission has already started investigating the case, and the first results are expected in 15 days."

Management at the factory are alleged to have initially staged a cover-up (
Image:
social media / east2west news)

Management at Slavyanka confectionery factory allegedly initially sought to cover-up the accident, according to local reports.

They had allegedly threatened workers with the sack for revealing details.

However, details of the tragedy appeared on social media and it was later confirmed by the Investigative Committee.

Locals say it is the third death at the plant this year.

Details of the other alleged cases are not known.

Natalia was married with a son, Ivan, ten.

Her sister Yulia said: "Her child is with us now."