Iran will not remain indifferent if it is proven that its drones are being used by Russia in the Ukraine war, foreign minister Hossein Amirabdollahian was reported as saying by Iranian state media on Monday, News.az reports citing Reuters.

"If it is proven to us that Iranian drones are being used in the Ukraine war against people, we should not remain indifferent," Amirabdollahian said, before adding that the defence cooperation between Tehran and Moscow will continue.