Chihuahua Senator Patricio Martínez García said 214,381 acres considered US territory since the 19th century actually belongs to Mexico.

So far, there has been no proposal that will lead the United States to address the territorial error, but Senator Martinez Garcia said he is looking for funds top conduct topographic and satellite studies that could confirm whether the US is trespassing on Mexican territory.

If the studies confirm the error, Mexico would be entitled to claim that territory by sending a diplomatic note to the United States government.

The legislator stated that 99 percent of the territory is vacant land only inhabited in Nogales and Arizona, so the case would require a legal review clarifying the situation for both countries.

The issue arises amid wavering relations between Mexico and the United States due to immigration policies involving a border wall that President Donald Trump plans to implement in order to prevent immigrants from entering the US.

Mexico’s Foreign Minister Luis Videgaray made the Mexican government’s displeasure known this week by coming out against deportation and immigrant families that have been separated while crossing the border.