Federal enforcement agencies are targeting three U.S. cities per week for large scale immigration arrests, with Aurora, Colorado to come next, three sources familiar with the planning told NBC News.

ICE announced Monday the multi-agency immigration clampdown resulted in 1,179 arrests in a single day — the biggest number since President Trump took office a week ago. Why it matters: The Trump administration is stepping up its immigration crackdown in cities across the U.

Immigration and Customs Enforcement (ICE) are making thousands of arrests during President Trump's first week in office, with agents across the country focusing on people with criminal records or gang ties.