The governor told hundreds of political and business officials from across the Mexican state that the United States should take more of an aggressive approach to preventing southbound arms trafficking across the border, the San Diego Union-Tribune said Thursday.

"The United States also has a responsibility here to put things into balance," Osuna said as part of Wednesday's gathering to discuss regional violence. "Who's causing greater harm to whom? Is it the migrants who with great pains come to work in that country, or is it the tens of thousands of weapons that cross the border, from north to south?"

The gathering of regional leaders, including the five mayors in Baja California, included the signing of the "Accord for Security, Justice, and Social Harmony in Baja California," which the Union-Tribune said was oriented toward uniting the state to ensure public safety.