While performing in Ottawa recently, Justin Bieber ran into some trouble. He's being investigated on possible gun charges--Nerf gun charges.

A woman working at the venue filed a police report claiming Justin assaulted her at the show, after she was hit with a Nerf gun projectile. Bieber was apparently having a Nerf war with his 3-year-old brother and 4-year-old sister when it happened.

The woman got way more angry than anyone should over a Nerf gun, and called the cops. The police actually took her seriously, and proceeded to interview some of the people that were at the venue.

Ridiculous.

Source: tmz.com