"Momo challenge" spurs girl's dangerous behavior, mom says

'Momo suicide challenge': Deadly game or hoax?

Little girl, 6, sings ‘Momo’s gonna kill you’ while hugging cuddly toy as Mum tries to reassure her scary char

How 'Momo', a global social media hoax about a paranormal threat to kids, morphed into a U.S. viral phenomenon