PHOENIX -- Maricopa County authorities said they've arrested a man and seized a van containing nearly 1,000 pounds of marijuana.
County Sheriff's office said the marijuana has an estimated street value of about $500,000.
MCSO detectives assigned to the drug suppression task force saw a van weighted down with dozens of plastic wrapped bundles and set up surveillance on the vehicle Monday.
They followed 31-year-old Nunez Efrain to an address in Glendale, where he pulled the van into a garage and closed the door.
"[We found] boxes, bundle wrapping, saran wrap, heavy scales, which indicate this home was being used as a stash house," said Joaquin Enriquez with MCSO.
He was later seen driving from the residence and was pulled over.
Officers said they noted a strong odor of marijuana and discovered the van was carrying 39 individual bundles of plastic-wrapped marijuana bales.
Sheriff's officials said Efrain is being held on suspicion of multiple felony drug charges.
KTAR's Martha Maurer contributed to this report.