Anti-aircraft gunners hit the Ka-52 Alligators in Kherson region yesterday evening, Ukraine's Air Force said. The £12million single-seat attack helicopter is nicknamed the 'Black Shark' and has been described as Russia's 'deadliest helicopter'. Its battlefield management system allows it to share data with other aircraft to coordinate attack operations. The attack came just weeks after Ukrainian troops shot down four Russian helicopters in 18 minutes. Ukraine also blew up a Mi-8 helicopter gunship in Donetsk after a surface-to-air missile picked it out of the sky yesterday.