(CNN) US Customs and Border Protection agents and officers are being deployed to cities across the country to support interior immigration enforcement, two sources familiar with the plans told CNN.

The agency is expected to deploy 100 officers and agents to Chicago, New York, San Francisco, Los Angeles, Atlanta, Houston, Boston, New Orleans, Detroit and Newark, New Jersey, one of the sources confirmed to CNN. The deployment is planned to run from February through May.

The move, first reported by The New York Times , comes amid an escalated fight between the Trump administration and so-called "sanctuary cities," which limit cooperation between local law enforcement and immigration authorities.

"CBP agents and officers who are being detailed to help ICE come from a number of different sectors and job positions. While some of them are trained in tactical operations, that is one of the many areas of training," the Department of Homeland Security said in a statement.

Acting Immigration and Customs Enforcement Director Matthew Albence said in a statement, "ICE is utilizing CBP to supplement enforcement activity in response to the resource challenges stemming from sanctuary city policies."

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