Woman suffered one of worst deaths possible as she was eaten alive by bear while on phone to mum

The horrific story of a woman that was mauled alive while on the phone to her mother has resurfaced.

Olga Moskalyova was just 19 when she decided to head on a summertime walk in eastern Siberia, Russia back in August 2011.

She was accompanied by her stepfather, Igor Tsyganenkov, in the Petropavlovsk-Kamchatsky region of the country, alongside a local river.

Sadly, the wholesome activity would take a tragic and terrifying turn after the pair were attacked by a vicious predator, all while Olga's mother, Tatiana, heard the incident unfolding over the phone.

The teenager had called her mother in fear, even managing to speak to her before being ripped away from the device.

In what is one of the most terrifying ways to die, Olga and Igor fought for their lives, sadly not making it out alive.

A mother bear and her cubs feasted on the pair by a Russian river (Getty Stock Image)

What happened to Olga Moskalyova?

While on their stroll, the pair were attacked by a brown bear.

Olga dodged the animal at first, before witnessing the vicious mother bear attack and kill her stepfather, crushing his skull and snapping his neck in front of her eyes.

After watching Igor succumb to his injuries, Olga noticed the bear making its way towards her.

She had run 200 feet away from the predator, but this didn't stop it from biting her leg and bringing her to the ground.

Somehow, amid all the chaos, she managed to dial her mother and call her several times during the violent attack that was being carried out by one of the scariest creatures in the world.

Olga Moskalyova was just 19 when she and her stepfather were mauled to death (Family Handout)

Olga Moskalyova’s harrowing final words to mum

When mum Tatiana picked up, she could hear her teenage daughter screaming: "Mum, the bear is eating me! Mum, it's such agony. Mum, help!"

First writing it off as a joke, the mother caught on to the very real fear in Olga's voice, as well as 'the sounds of a bear growling and chewing', she said to the Daily Mail.

Tatiana added: "I could have died then and there from shock."

In her panic, she tried to get in touch with her husband, as she didn't know he was already dead.

The mum then reached out to authorities and family members in the nearby village of Termalniy in her desperate calls for them to reach the river and help.

In another phone call, the teenager was heard saying: "Mum, the bears are back. She came back and brought her three babies.

"They're... eating me."

Olga called one more time an hour or so later, saying her final words to Tatiana.

Her mum has spoken out on the tragedy (Luca Romani / 500px/Getty stock photo)

"Mum, it's not hurting any more. I don't feel the pain," she told her mother. "Forgive me for everything, I love you so much."

What has Olga Moskalyova’s mum said?

After hearing her daughter speak for the last time, Tatiana was distraught, with her brother-in-law Andrei arriving at the scene of the mauling with police half an hour later.

They saw the mother bear feasting on Igor's body, while Olga's remains were also seen on the ground.

Emergency services promptly called six hunters to find and kill the mother bear and her cubs after the violent incident.

Reflecting on her memories of Olga, the mother said: "My daughter was such fun. She was so cheerful, friendly, and warm.

"She had graduated from music school, and just days before the bear attack she got her driving ­licence."

Both Olga and Igor were buried on the same day in 2011.