WASHINGTON, The United States on Thursday sanctioned two companies in China and Russia for allegedly facilitating North Korea's nuclear weapons program.

The Department of the Treasury also sanctioned a North Korean individual in the latest set of sanctions aimed at denuclearizing the regime.

Thursday's action particularly targets the revenue earned for the Pyongyang government by North Korean IT workers overseas.

The Treasury said it is sanctioning China Silver Star, which is "nominally a Chinese IT company, but in reality ... managed and controlled by North Koreans."

Also being sanctioned is the firm's CEO, Jong Song-hwa, and its Russia-based front company, Volasys Silver Star.

"These actions are intended to stop the flow of illicit revenue to North Korea from overseas information technology workers disguising their true identities and hiding behind front companies, aliases, and third-party nationals," Treasury Secretary Steven Mnuchin said in a statement.

"Treasury is once again warning the IT industry, businesses, and individuals across the globe to take precautions to ensure that they are not unwittingly employing North Korean workers for technology projects by doing business with companies like the ones designated today," he said, noting that the U.S. will continue to enforce sanctions until the "final, fully verified denuclearization" of North Korea.

The sanctions call for blocking any property or interests of the designated entities and individual within the U.S.

Source: Yonhap News Agency