Dangerous internet challenge involving guns gaining popularity

MEMPHIS, Tennessee (KTRK) -- A dangerous internet challenge is gaining popularity.

The videos are popping up on YouTube, showing people pulling guns on their friends.

It's called the "No lackin' challenge."

Memphis police said a 17-year-old was shot in the head Thursday morning while participating in the challenge. He was sitting with his friends in a restaurant when he was accidentally shot.

SEE ALSO: Tide Pod Challenge takes serious turn for college student