The Trump administration announced on Friday that it had leveled a package of new economic sanctions against North Korea, Russia, and China over efforts by individuals in these countries to support an illicit nuclear arms network that feeds North Korea's nuclear program, according to an announcement by the Treasury Department.

The United States has determined that North Korean nationals are working as agents of Russia, China, Vietnam, and Cuba in order to provide financial support for North Korea's nuclear weapons program.

"Today's sanctions are aimed at disrupting the networks and methods that the Government of North Korea employs to fund its unlawful nuclear, ballistic missile, and proliferation programs," Secretary of the Treasury Steven Mnuchin said in a statement.

"These sanctions underscore this administration's commitment to countering the threat to the United States, to our allies, and to stability on the Korean peninsula and in the wider Asia Pacific region posed by the Kim regime in Pyongyang, and I urge our partners and allies to take similar measures to cut off its funding," Mnuchin said.

The sanctions include one entity and 11 individuals identified as supporting North Korea's nuclear weapons program, according to the Treasury Department.