The U.S. Department of the Treasury on Thursday designated a North Korean diplomat, two Turkish nationals and a Turkish entity for attempting to engage in prohibited weapons and luxury goods transactions.

The designations target Huseyin Sahin, Erhan Culha and a Turkish entity named SIA Falcon International Group (SIA Falcon). Sahin is identified as the CEO of SIA Falcon, while Culha is identified as a general manager at the company.

“SIA Falcon International Group and individuals acting on its behalf are blatantly attempting to flout longstanding UN sanctions on trade in weapons and luxury goods with North Korea,” Treasury Secretary Steven Mnuchin said in