At least 15 people have been killed in Russian attacks on Ukraine, including 10 dead in ballistic missile strikes on an exhibition near Kyiv showcasing drone technology. Ukrainian President Volodymyr Zelensky said some 100 people had been injured in the daytime attack on the exhibition, attended by prominent members of the defence sector. Five people were also killed by Russian glide bombs in the eastern city of Sloviansk. A Ukrainian strike on Friday killed six people and wounded 26 in the Russian city of Kirov, more than 1,000km (600 miles) behind the front line. Ukrainian air force spokesman Yuri Ihnat told Ukrainian TV the attack involved three ballistic missiles, only one of which was intercepted.