U.S. authorities are warning citizens not to take the law into their own hands after a group patrolling the U.S.-Mexico border stopped hundreds of migrants when they crossed into southern New Mexico this week.

This Saturday, as soon as the news spread of U.S. citizens forming armed vigilante groups, to protect their southern border, the Government of Mexico expressed deep concerns and pointed out to the “abuse of human rights for those who want to migrate or ask asylum in U.S.” This is the full press release:

The Government of Mexico expresses its deep concern regarding the actions of vigilante groups on the border with New Mexico that have been intimidating and extorting migrants.

These practices can lead to abuses of the human rights of people who migrate or request asylum or refuge in the United States.

For Mexico, patrols and security operations not covered by US federal legislation constitute a risk to the migrants’ human security.

This condemnation comes after FBI arrested on Saturday a member of an armed group of U.S. citizens who have been stopping migrants illegally crossing the U.S.-Mexico border in southwestern state of New Mexico.

Larry Hopkins was arrested in Sunland Park, N.M., on federal charges of possession of firearms and ammunition, FBI said in a statement. He had declared himself as the commander of the United Constitutional Patriots (UCP), a volunteer vigilante group whose members were holding migrants, and their objective as described by them was to “assist U.S. Border Patrol to manage the increased influx of illegals.”

In 2016, according to Pew Research Center estimates there were 12.0 million immigrants from Mexico living in the United States, 45% were in the country illegally. Mexico is the United State’s largest source of immigrants, making up 26.6% of all U.S. immigrants.

For decades the Mexican Government has failed to contain the number of migrants and illicit drugs pouring into the U.S. from their territory.

Unfortunately the Government of Mexico never mentions or condemns the way Central American migrants are treated inside their territory. How Mexican cartels and criminal organizations are profiting from these caravans. How tens of thousands of migrants disappear inside Mexican territory before reaching the U.S. southern border.