The "Momo Challenge" is a hoax and urban legend about a nonexistent social media challenge that was spread on Facebook and other media outlets. It was reported that children and adolescents were being enticed by a user named Momo to perform a series of dangerous tasks including violent attacks and suicide. Despite claims in 2019 that the phenomenon had reached worldwide proportions in July 2018, the number of actual complaints was relatively small and no law enforcement agency has confirmed that anyone was harmed as a direct result of it. Awareness of the alleged challenge rose in February 2019 after the Police Service of Northern Ireland posted a public warning on Facebook.