A traffic stop led to a drug bust in North Adams, and a police dog detected the drugs.

Officers pulled over a car in the city, in connection with a narcotics investigation, they said.

Police K-9 Rocky confirmed there were drugs in the car, they said.

Police found 3,800 bags of fentanyl, 41 grams of crack cocaine, 182 grams of Xanax, oxycodone and about $4,600 in cash.

Two people were arrested, and face drug charges.