Authorities in three states have made arrests in connection with individuals impersonating Immigration and Customs Enforcement (ICE) officers, as tensions rise amid a nationwide immigration crackdown.

On Monday, the Florida Highway Patrol conducted a joint operation with federal immigration officers in Jefferson County to round up 12 people believed to be in the country illegally, one of a number of raids performed around the country as the Trump administration ramps up its plans for mass deportation.

Donald Trump's administration has used the "catch and release" program to free 461 undocumented immigrants from custody since he took office, partly because of limited detention space in U.S. immigration facilities,

Federal agents raided apartment buildings across Denver in a search of Venezuelan gang members and other migrants under the Trump administration's mass deportation effort targeting major cities. NBC News' David Noriega has the latest on the raids.

NEWS spoke with one business owner who says his migrant employees are staying home out of fear, regardless of their status.