Backstreet Boys singer Nick Carter has hit his baby brother, Aaron Carter, with a restraining order after he allegedly threatened him with violence.

"After careful consideration, my sister Angel and I regret that we were required to seek a restraining order against our brother Aaron today. In light of Aaron's increasingly alarming behavior and his recent confession that he harbors thoughts and intentions of killing my pregnant wife and unborn child, we were left with no choice but to take every measure possible to protect ourselves and our family," Nick said in a statement released in Tuesday, per The Blast.

Aaron hopped onto his Twitter account to share the news with the world that he is "done" with his brother:

According to reports, Aaron has expressed that he thinks about killing his famous brother, and everybody is concerned that he has become increasingly obsessed with a gun collection that he recently acquired.