Summary Russian officials say at least seven people, including three children, have been killed by a Ukrainian drone on a beach in south-west Russia - BBC Verify examines footage It's not clear if the drone was intercepted before landing on the beach. It has been reported it may have been targeting a Russian naval base about 25 miles (40 km) away - Ukraine has not commented The area has long been a favourite of Russian holidaymakers, says our Europe reporter Earlier, an apparent Ukrainian drone strike hit a warehouse belonging to Russia's largest online retailer Wildberries, around 112 miles east...