Idaho State Police on Friday seized 378 pounds of marijuana secreted in an SUV traveling near Kellogg.

Two suspects were arrested after the stop, which occurred on Interstate 90 just before 9:30 a.m. Friday, according to a news release. The ISP trooper who pulled over the Chevy Tahoe used a drug-sniffing dog to detect the marijuana, valued at more than $1 million, according to the law enforcement agency.

An ISP spokeswoman would not release the names of the suspects, or say how that quantity of marijuana was hidden in an SUV, in an interview Friday afternoon. The suspects are being held in the Shoshone County Jail on charges of marijuana trafficking, according to the news release.

Idaho and federal laws outlaw the possession or consumption of marijuana. Idaho has some of the toughest marijuana criminal penalties in the country, with a five-year mandatory minimum prison sentence for trafficking in quantities of pot exceeding 25 pounds.