The Telegraph's Allison Quinn writes: Russia's Interior Ministry confirmed in a statement that the suspect had been brandishing a real human head, that of a child, thought to be a four-year-old girl whom the woman had been babysitting nearby. Earlier on Monday, police reported finding a child's body at the scene of a fire in an apartment block near the same metro station, Oktyabrskoye Polye. It is thought that the fire may have been set to hide evidence of the crime. The woman, as yet unidentified but described by witnesses as wearing all black, was approached by police, who asked to check her documents, a standard routine in Moscow. The woman responded by yanking the head out of her purse and threatening to detonate an explosive device, according to LifeNews.