BROWN DEER, Wis. (CBS 58) -- Four teens were arrested after a staff member at Brown Deer Middle/High School says they saw one of the teens waving a gun in a car on school property. 

It happened in the parking lot of the school around 11:00 a.m. on Thursday, September 19. 

Brown Deer Police say they stopped the vehicle near N. Green Bay Road and found a black BB gun and marijuana inside the vehicle.

A 17-year-old boy from Brown Deer was arrested for disorderly conduct and possession of a dangerous weapon on school premises.

An 18-year-old man and a 16-year-old boy, also from Brown Deer, were arrested for disorderly conduct and possession of THC respectively.

A 17-year-old Milwaukee girl was arrested for disorderly conduct and possession of THC.