BREAKING! Muslim babysitter decapitates 4 year old girl in her care, walks through the streets with child's head.

A most shocking video has surfaced from Moscow as a babysitter decapitated the little girl in her care before walking through Moscow carrying the child's severed head.

The woman shouted 'Allahu Akbar' as she appeared near Oktyabrskoye Pole metro station in the northwest of the Russian capital and threatened to blow herself up.

It came hours after police found the headless body of a child when they were called to a fire at a block of flats in the city. 

he victim was a girl identified as Nastya M - and the child's 38-year-old nanny Gyulchehra Bobokulova, from Uzbekistan, has been arrested.

The Uzbek woman pulled the severed head out of a bag and walked around the entrance to the metro station as police moved in. The horrific incident was caught on amateur video.

She is then said to have shouted that she had killed the child and was seen praying shortly before being arrest by police officers..

One eyewitness at the underground station told MK how the woman screamed: 'My child was killed…I will blow up everyone.' She also shouted: 'I hate democracy'.

A journalist working for RBC daily, said she had heard the woman screaming 'Allahu Akbar" (God is Great).