A man arrested by Mexican police two weeks ago for his suspected ties to smuggling drugs and an endangered fish was first released, then arrested again — this time on murder charges.

Mexico's incoming president Andés Manuel López Obrador is planning a visit to Sonora on Friday and Saturday, where he is expected to talk about his proposals to create a special border zone.

Tempe-based Walbar Engine Components recently finished work on a new manufacturing facility in the Sonoran port city of Guaymas, near San Carlos.

Mexico’s early July election brought an insurgent center-left party to power at every level, and dealt stinging defeats to some of its longest standing parties. How the old guard will adapt — and how the new guard will avoid the pitfalls of the past — are very live questions.

New Mexico and Sonora governors signed new agreements on education and security at a plenary meeting of the New Mexico-Sonora Commission in Santa Fe last week.

The governor of Sonora, Mexico, says a special border zone would bring economic development to the region. Arizona leaders are interested in the idea, but say they need more details.

The announcement of a preliminary U.S.-Mexico trade deal Monday came as welcome news for business officials on both sides of the border.

The Arizona Department of Transportation has been training Mexican truck drivers how to consistently pass border safety inspections since last year. Now the agency is conducting its first industry-specific training this week.

A proposal to create a new nature reserve off the cost of Mexico's Baja California Sur has created tension with fisherman who say making the region a protected area threatens their way of life.