A young female farm worker was fed alive to a herd of pigs after allegedly being brutally raped and beaten by a colleague with a grudge against her father.

Igor Zaika, 41, admits attacking his boss?s 17-year-old daughter, and is believed to have knocked her unconscious and left her to be mauled to death by pigs to cover up his sexual assault.

The farmworker Is accused of committing a violent sexual assault on Milena Shevelyova while she was unconscious after punching her and striking her with a stick.

Milena had been left home alone in Krasnoyarsk, Russia, by her parents and was feeding the pigs when Zaika carried out his assault.

It was originally thought that she had been attacked and killed solely by aggressive pigs, but now officers say they only mauled her after she was knocked out, sexually assaulted and left to die.

In a videoed interrogation, the suspect told investigators: ?I came in, and there?s his daughter, the manager?s daughter?.we got into a fight.?

He did not confess on camera to the sex attack but investigators are understood to have found forensic evidence.

He told how he 'went at her with a stick? and ?threw a few punches?.to her head.

Igor Zaika (41) has been charged with murder after confessing to the savage beating and is now accused of committing a violent sexual assault on the teenager while she was unconscious

Milena was feeding the pigs at her home in Krasnoyarsk region, Russia, when she was attacked

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After leaving Milena motionless on the ground in the vodka-fuelled alleged attack, he grabbed her phone and ran home.

It was then that she was mauled by the pigs.

?The man deliberately left the girl to be eaten by pigs, because he knew that the animals would attack the body,? said a report by news outlet Readovka.

Milena?s parents had called her boyfriend Vladimir Bedny, 18, to check on her when she stopped answering her phone.

He approached the family?s pigsty with his torch and was left sickened by what he found.

?Switching on his torch, he saw the horrifying scene on the floor,? reported media outlet NGS24, citing local people.

?The boyfriend ran out, vomiting and shouting for help.?

He called an ambulance but Milena had already died from blood loss following the violent mauling.

She was found with multiple wounds to her head and body from ?pig bites?.

?All the other pigs attacked her,? said a report from Bad News Telegram channel.

Reports say police initially quizzed him as a suspect, before switching their attention to Zaika.

The media report, citing law enforcement sources, said: ?As someone who had lived in the village all his life and worked with livestock, he perfectly understood that the animals could ?finish off? the girl lying on the floor.

?In fact, he was counting on this: the pigs would mutilate the body, and everything would look like an accident.

?But modern forensics left him no chance?the investigators caught the scoundrel.?

After leaving the pigsty, Zika says he destroyed her phone ? which he had stolen from her ? and the stick he used to club her, burning both in a furnace.

A neighbour named Vera said: ?She was such a kind person. Always helping her parents with everything. A truly compassionate child.

?I can?t wrap my head around this loss! Just 17 years old? she was such a little doll.?

Another local said: ?Milena?s parents are unlikely to return to work anymore. Such psychological trauma.?

The victim's distraught boyfriend posted: ?You will forever remain in my heart.?

Zaika is charged with committing murder with especial cruelty to hide his violent sexual assault and in a separate charge of a violent sexual attack on an underage girl.

He Is also revealed to have a previous conviction for a multiple stabbing when his brother was the victim. (AFP)

?Milena Shevelyova (pictured) was just 17 when she was fed to pigs after reportedly being beaten and raped by a farmworker

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