New restrictions are put in place by the U.S. to limit North Korea's funding.

On Wednesday, Brian Nelson, Treasury's senior sanctions official, stated that North Korea's "illegal" development of WMD and ballistic missile programs harms global security and regional stability.

On Wednesday, the U.S. Treasury Department announced penalties on people and organizations it claimed were illegally raising money for the North Korean government.

Both Chilsong Trading Corporation, which it claims North Korea uses to earn foreign currency and gather intelligence, and Paekho Trading Corporation Korea, which is the charge of generating funds for the North Korean government since the 1980s by carrying out art and construction plan throughout the Middle East and Africa, have been sanctioned by the Office of Foreign Assets Control of the Treasury Department (OFAC).

According to a statement from the Treasury Department, OFAC also sanctioned Hwang Kil Su and Pak Hwa Song for aiding the North Korean regime in raising money.

According to the agency, the people created a Congo Aconde SARL business in the Democratic Republic of the Congo to profit from building and erecting statue projects with regional governments.

According to state media, North Korea reportedly tested four strategic cruise missiles this week as part of a rehearsal to show off its nuclear reprisal capability against what it views as hostile troops.

North Korea's "unauthorized weapons of mass destruction and nuclear missile programs harm world security and regional stability," Brian Nelson, Treasury's top sanctions officer, said on Wednesday.

He continued, "The United States remains dedicated to pursuing the regime's international illegal networks that provide funding for these destabilizing operations.

With his South Korean and Japanese counterparts, U.S. Secretary of State Antony Blinken pleaded with nations last month to impose sanctions against North Korea more vigorously in response to its most recent ballistic missile launch.

Notwithstanding restrictions imposed by United Nations Security Council resolutions that forbid the nuclear-armed state's missile activity, North Korea has advanced in developing and mass-producing new missiles.

Officials from the United States and South Korea recently took part in a tabletop exercise that mimicked the use of nuclear weapons by North Korea.