LUKEVILLE, Ariz. (AP) - U.S. Customs and Border Protection officers seized over a ton of marijuana found in a motorhome at a southern Arizona border crossing.

The agency says officers at the Lukeville crossing found 2,600 pounds of marijuana valued in excess of $1.3 million when led to it by a drug-sniffing dog during a secondary inspection of the vehicle Saturday.

Agents arrested a 55-year-old Glendale man who was driving the vehicle and a 58-year-old Phoenix woman who was his passenger. Their names were not released.

Lukeville is located 113 miles west of Tucson.