Momo 'challenge': Police warn over horrifying picture that is adding people on WhatsApp in chilling attack

Police have warned over a chilling "Momo" behaviour on messaging apps that appears to be targeting children. The attack sees malicious people use a horrifying photo – of what appears to be a woman's face attached to a bird's body – which has been given the name Momo. Someone using the horrifying message will add affected children or even adults on messaging apps like WhatsApp, and once they accept use that contact to send a variety of horrifying messages. Police have drawn attention to instances where the contact appeared to encourage children to hold a knife to their throat and threatened their family. The Momo messages are a long-running trend online, having been around at least since summer. But they appear to have flared up once again, leading police in Northern Ireland to watch out for the safety of anyone that might be added by people using the "Momo" image.