The official, speaking on condition of anonymity, said the training would begin in the coming days and take place outside Ukraine, the Reuters news agency reported on Monday.
The United States has previously trained Ukrainian forces on Switchblade drones, according to Reuters.
Western governments recently pledged more military assistance to Ukraine as it fights to defend itself against Russia's brutal invasion.
The United States last week announced an extra USD 800 million in military aid, including artillery systems, armoured personnel carriers and helicopters, ahead of an expected Russian offensive in eastern Ukraine.
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Source: IAR, PAP, Reuters