Ukrainian authorities deported two Iranian nationals who attempted to buy components for the X-31 (or KH-31) anti-ship missile in January 2018. One of the men, Abdi Biyan, was allegedly a military attache at the Iranian embassy in Kyiv. Police found missile parts as well as technical documents in the men’s vehicle. Ukraine’s intelligence service noted that the attempted purchase may violate the U.N prohibition on Iranian arms procurement. The X-31 is a Russian-designed weapon capable of supersonic speeds.