A North Korean ballistic missile that Russia used against Ukraine last month heavily incorporated foreign-sourced parts, including from the U.S., according to a new report.

Researchers from Conflict Armament Research (CAR) found that over 75% of documented components in the DPRK missile fired at Kharkiv on Jan. 2 came from U.S. suppliers, demonstrating the DPRK’s ability to source parts in defiance of sanctions.

CAR previously determined that the missile was manufactured in the DPRK and was likely “a KN-23 or a KN-24” (Hwasong-11A or Hwasong-11B). The DPRK first test-fired the short-range ballistic missiles (SRBMs) KN-23 and KN-24in 2019,