The United States Immigration and Customs Enforcement has conducted their largest anti-gang operation ever on Thursday, arresting more than 1,300 people for gang related activity.

Houston, New York, Atlanta and Newark, New Jersey were among the hardest hit areas, and among those arrested were three of Barack Obama's 'dreamers' protected under the Deferred Action for Childhood Arrivals program.

Of the 1,368 arrested, 445 were foreign nationals.

The report from CNN states that 10 of the arrests were of people who crossed the border as unaccompanied minors, eight of whom were confirmed to belong to the MS-13 gang.