North Korea blasted new U.S. sanctions on the rogue nation in no uncertain terms Thursday, saying the penalties amounted to a “declaration of a war,” the AFP reported.

The Kim Jong Un’s regime vowed to retaliate, according to its statement.

The Treasury Department imposed sanctions on the dictator and 10 other senior officials Wednesday over human rights abuses. It was the first time North Korean officials were blacklisted by the U.S. over rights violations, such as running the nation’s notorious gulag.

The sanctions affect property and assets within U.S. jurisdiction, Reuters reported.