Brandon Judd, president of the National Border Patrol Council, said border agents' use of tear gas on caravan migrants trying to breach the U.S.-Mexico border was the "appropriate level of action."

The clash Sunday came as hundreds of migrants from a caravan that originated in Central America pushed past Mexican riot police and rushed the border at the port of entry in San Ysidro.

Many Democrats have expressed outrage at the agents' use of tear gas, but Judd, a 21-year veteran of the Border Patrol, strongly disagrees.

"The way these people rushed the border was absolutely monstrous. They pushed women and children up front, and then behind those women and children, they started throwing rocks, cement bricks ... bottles at our Border Patrol agents," Judd said on "Outnumbered Overtime" Monday.

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He said that it was a "very dangerous situation" for agents and they responded appropriately.

"We did not use kinetic force on any children. We launched tear gas into the area, which then caused the group to disperse, and we were able to get control of it," Judd said.

He questioned why the Mexican government "allowed" the migrants to rush the border, as there was advance intelligence that it was going to happen.

"This is something that our partners to the south need to work with us on, so that we do not have to feel the brunt of this pressure," Judd said.

Watch the "Outnumbered Overtime" interview above.

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