Boston police officers arrested a Cambridge man after they allegedly found a gun during a traffic stop near Tremont Street and Ruggles Street Sunday evening.
Police said in a statement that the driver of the car and the passenger, Carlos Garcia-Parajo, 19, were both “behaving in a nervous and suspicious manner while moving around inside the car.”
Garci-Parajo “repeatedly provided false information regarding his name and date of birth,” police said.
Officers found a loaded .380 caliber Davis Arms model P380 semi-automatic handgun inside the vehicle and arrested Garcia-Parejo for unlawful posession.
The driver of the car was not arrested, police said.
Maddie Kilgannon can be reached at maddie.kilgannon@globe.com. Follow her on Twitter @MaddieKilgannon.