Kyiv says that it has stripped the Iranian ambassador of his accreditation and decided to reduce Iran's diplomatic presence in Ukraine to protest drone deliveries to Russia.
"Supplying Russia with weapons to wage war against Ukraine is an unfriendly act that deals a serious blow to relations between Ukraine and Iran," the Foreign Ministry said in a statement on September 23.
"In response to such an unfriendly act the Ukrainian side has decided to deprive the ambassador of Iran of his accreditation and also to significantly reduce the number of diplomatic staff" at the Iranian Embassy in Kyiv, it added.
Earlier on September 23, Kyiv said that one civilian was killed during a Russian attack with drones on the southern port city of Odesa and that one Iranian-designed unmanned vehicle was shot down by Ukrainian forces.
There was no immediate reaction from Tehran.
Iran has in the past dismissed accusations by the United States and Ukraine that it is supplying drones to Russia to use in its unprovoked war against its neighbor.