VAN BUREN COUNTY, Mich.—Michigan State Police on Thursday seized three kilograms of fentanyl during a traffic stop on I-94.

According to police, troopers stopped a vehicle occupied by a man and a woman from California on I-94 in Van Buren County and were given consent to search the vehicle.

Troopers found the packaged drugs hidden in the vehicle, according to Michigan State Police.

The 23-year-old male driver was found to be responsible for the drugs and he was arrested, police said.

Police released the female passenger after she gave a statement.

State police said that three kilograms of fentanyl is equal to about three million doses.