The feds may use a local juvenile detention center to house some of the nearly 2,000 children they've separated from their parents at the Mexican border.

Alexandria Mayor Allison Silberberg said she's expressed "strong concerns" with the board that runs the Northern Virginia Juvenile Detention Center, which has a contract to hold as many as 30 unaccompanied minors.

The detention center is jointly run by Alexandria and Arlington, with members appointed by each jurisdiction.

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The children separated from their parents at the border with Mexico are being held not by the Department of Homeland Security, but by the Department of Health and Human Services. There are facilities for children in 17 states, including Maryland and Virginia.

Kenneth Wolfe, deputy communications director of the Administration for Children and Families wouldn't say where they are, or talk about specific facilities. But the contract with the Northern Virginia Juvenile Detention Center is a public record.

"It's basically like a jail, except for teenagers instead of adults," said Simon Sandoval-Moshenberg, legal director of the the Legal Aid Justice Center in Falls Church. "It's got concrete walls, stainless steel toilets attached to those walls, and locks on the doors."

Sandoval-Moshenberg has been inside the facility, He's represented children detained there.

Ironically, the detention center is leasing as many as 30 beds to the federal government because Alexandria and Arlington no longer need them. They've been trying to keep juveniles in the community.

"The facility essentially thought, we've got all these beds, let's renew our contract with the federal government to get some immigrant kids filling those beds," said Sandoval-Moshenberg

An official at the detention center declined to comment.

But Alexandria officials have expressed concern from months about the idea that the city is involved in what they say amounts to a youth immigration center.

"Alexandria and Arlington together run this facility, and they are renting beds to the U.S. government to continue jailing migrant kids, and they could stop doing that, and they should stop doing that," said Sandoval-Moshenberg of the Legal Aid Justice Center.