Ukraine says its air force struck a drone complex in the Russian region of Kursk, killing up to 20 drone operators.The General Staff of the Armed Forces of Ukraine shared an image on Telegram on Monday of a large plume of smoke and debris rising from an industrial site, saying it was 'used by the enemy to launch reconnaissance, strike, and FPV drones.'It said the drone hub was near Tetkino, a village close to the border with Ukraine and roughly 40 miles west of Sudhza.Business Insider could not independently verify the claim, but was able to geolocate the image to