A Mexican couple who has lived in New York City for two decades was reportedly detained during a trip to visit a family member in the military.

According to a local NBC affiliate, Concepcion and Margarito Silva had traveled upstate to Fort Drum to celebrate Independence Day with their son-in-law, a sergeant in the Army, when they were stopped for questioning at base gates by border patrol agents.

Their son, Eduardo Silva, told the local station the agents had looked at his parents’ state IDs and questioned them before taking them hundreds of miles away to a detention facility.

Eduardo Silva told the NBC affiliate his parents came to the United States from Mexico two decades ago and have been living in Brooklyn. He said they were also approved for an official work permit from the Department of Labor in 2007.

The Army said in a statement to the publication that the couple had attempted to gain access to its military base without Department of Defense-approved identification, which it said all visitors are required to present.

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“Fort Drum security personnel identified a discrepancy with their passports,” the military branch added, which “prompted security personnel to contact Customs and Border Patrol."

An Immigration and Customs Enforcement spokesperson confirmed to the outlet that the couple was arrested by Border Protection agents.

"I don't understand why people pick on people that just want to work and live their life without any troubles," Eduardo Silva told the outlet.

Dulce Silva, another child of the detained couple, said her family is also concerned about their parents' health while in custody.

"We don't know what could happen to them in there," she said. "It would be crazy if they didn't make it out of there."