The United States added two Russian individuals and entities to its sanctions list on Friday, citing its support for North Korea's weapons program.
The sanctions come a day after the Pentagon announced in an intelligence assessment that Pyongyang had tested a continental ballistic missile system in two recent North Korean missile tests.
US Treasury Department spokesman Brian Nilsson said the sanctions targeted a network of Russian personalities and entities that had helped North Korea purchase ballistic missile components.
The North Korean government announced on Thursday morning that it was testing a recent satellite system to monitor the US military.