"The mistake is not diplomacy. The mistake is diplomacy with Putin. He negotiates only with himself," the Ukrainian President Zelenskyy said in an interview with The Economist.
In some cases, the officials had collected $10,000 per head to declare fighting-fit men as unfit for services and later smuggle them out of the country.
The US had expressed its displeasure over Khan's visit to Russia soon after Russia's military action against Ukraine, and set up a chain of events that led to his removal.
Ukraine has taken down Soviet-era signs from a hilltop monument in Kyiv and replaced the hammer-and-sickle symbol with a trident coat of arms, CNN reported.