Authorities arrested one man and seized about 500 pounds of marijuana following a traffic pursuit Tuesday morning in the West Valley.
The pursuit ended on eastbound Interstate 10 at Dysart Road after the suspect and a second man stopped their vehicle and fled on foot.
Westbound I-10 was closed briefly at Dysart Road while Maricopa County sheriff's deputies, assisted by Avondale and Goodyear police, unsuccessfully searched for the second man, said Bart Graves, a spokesman for the Arizona Department of Public Safety.
The man, who was dressed in a red shirt and blue jeans, had dashed on foot across westbound I-10 and into a field north of the freeway, said Sgt. Brandon Jones, a sheriff's spokesman.
The incident began at I-10 and State Route 85 after deputies, acting on a tip, unsuccessfully tried to do a traffic stop on a gold Chevrolet Tahoe with two people aboard, Jones said.
The driver refused to stop but continued east on I-10 before stopping about 17 miles later at Dysart Road as deputies maintained visual contact with the Tahoe, Jones said.
Both men then bailed from the vehicle, he said. One of them was quickly caught.
Inside the vehicle, deputies found an estimated 500 pounds of marijuana as will as a 9mm weapon fully loaded with a 50-bullet ammunition clip, Jones said.
Brent Whiting can be reached by email