SOUTH BEND, Ind. -- Notre Dame Security Police officers arrested two men on weapons and drug charges following a traffic stop near campus Wednesday night.

A Notre Dame officer had been monitoring South Bend Police radio traffic when he heard the description of a vehicle involved in an incident.

A passerby called police when a silver Pontiac G6 stopped on the Angela Boulevard bridge. The caller said she tapped on the driver's side window and the driver sped away towards the Notre Dame campus.

The Notre Dame police officer saw the vehicle driving on Angela Boulevard near Eddy Street and conducted a traffic stop after the driver failed to use a turn signal when changing lanes, reports said.

Police said they recovered a Glock 19 with 18 rounds and a Glock 45 with 11 rounds under the driver's seat and the passenger's seat, reports said.

The driver, Troyon Scott, 18, was taken into custody on preliminary charges related to the weapons and marijuana possession. He was also charged with driving a vehicle without a license, reports said.

His passenger, Troyae Scott, 20, was also taken into custody on preliminary charges related to the weapons and marijuana possession.

The brothers were taken to the NDSP headquarters, then South Bend Police officers transported them to the Metro Homicide Unit.