Russia says Ukrainian drone attack on holiday-makers killed seven, including 3 children ReutersRussia says seven killed and 40 injured by Ukrainian drone hitting busy beach BBCAt least 17 killed as Russia and Ukraine trade heavy attacks Al JazeeraUkrainian strikes on holiday resort, Crimea kill 11 RTE.ieAt Least 11 Killed in Ukrainian Attacks in Southern Russia and Annexed Crimea The Moscow Times