What is Blue Whale challenge?

[ahlam1399]

http://img-s-msn-com.akamaized.net/tenant/amp/entityid/AAphaVv.img?h=100&w=100&m=6&q=60&o=f&l=fThe Blue Whale Challenge is said to have started as a social media game, in which a self-harm group identifies disturbed teens online and encourages them to commit suicide.

أكثر... (http://www.msn.com/en-in/news/newsindia/what-is-blue-whale-challenge-how-did-it-get-its-name-and-who-created-it/ar-AApeMZv?srcref=rss)