Tucson Border Patrol agents arrested three people, including a U.S. citizen, and seized more than $1 million worth of drugs over the weekend, a news release said.

Two Mexican nationals were arrested Friday at the checkpoint on Interstate 19 south of Tucson when agents say they each tried to smuggle 4.5 pounds of brown-tar heroin, the release said.

On Sunday, a 23-year-old United States citizen was arrested at the same checkpoint with 1.75 pounds of heroin hidden under his clothes. Combined, the nearly 11 pounds of heroin is worth about $130,000. The smugglers face federal prosecution by the U.S. Attorney’s Office.

Also on Sunday, a tip led Casa Grande agents to an abandoned 2004 Chevrolet Suburban stuffed with 1,800 pounds of marijuana worth about $915,000.

The vehicle had been reported stolen from Avondale. It was confiscated by the Pinal County Sheriff’s Department while the pot was turned over to the Drug Enforcement Administration.

Senior Editor, News, Arizona Daily Star, Tucson, Az.