Immigration and Customs Enforcement's investigative division arrested 1,378 people after a six-week long, national gang operation that concluded this week.
Of those apprehended, 1,098 were arrested on federal or state criminal charges, and the remaining 280 were arrested on non-criminal immigration violations. There were 933 U.S. citizens and 445 foreign nationals arrested, according to ICE.
The operation targeted gang members and associates involved in transnational criminal activity, including drug trafficking, weapons smuggling, human smuggling and sex trafficking, murder and racketeering -– crimes "with a nexus to our border," said ICE.
"These violent criminal street gangs are the biggest threat facing our communities," said ICE Acting Director Thomas Homan during a press briefing Thursday.
He said that focus was one of the "highest priorities and will remain so" for ICE.
The operation was conducted as part of the broader and sustained operations known at "Operation Shield," which is focused on enhancing public safety in conjunction with state and local partners.