Five men, four adults and one minor, were arrested on drug charges after a routine motor vehicle stop on route 495 in Hopkinton early Thursday morning.

The driver performed several motor vehicle violations before Trooper Ryan Walczak stopped car. 

One of the passengers admitted to smoking marijuana in the car, which accounted for a heavy odor of the substance, according to Walczak.

Numerous inconsistant statements from the operator and passengers determined the car, with New Hampshire dealer plates, was unregistered.

Further investigation uncovered over 2,000 Oxycodone pills and two dozen Methadone pills tucked away in a secret compartment.

One minor along with Raul Fontana, 22, of Lawrence, Manuel Barroso, 31, of Nashua, Julio Herrera, 26, of New York City, and Jose Rosario, 23, of Manchester New Hampshire, were arrested for trafficking in a Class B substance over 200 grams, possession with intent to distribute, and a conspiracy to violate the drug laws.

Fontana was also charged with numerous motor vehicle violations including attaching plate, marked lanes violation, number plate violation, misuse of a daler plate and operating an unregistered vehicle.

All five were held for arraignment on Friday in Framingham District Court.