Concerns over deepening military cooperation between Russia and North Korea over war in Ukraine. Russian lawmaker warns Ukrainian strikes on Russia would lead to nuclear war 15:50 A senior Russian lawmaker on Thursday said that Ukrainian strikes on Russia with western weapons would lead to nuclear war and that Moscow’s response would be tough with more powerful weapons.

A dozen other people were injured, some seriously, in the attack in the city of Sumy, which has come under increased bombardment since Ukraine’s offensive into Russia’s nearby Kursk region.

Over the past few months, Kyiv has grown in confidence and ambition as it has ramped up drone attacks inside Russia. It’s struck as far as 1,800km (1,118 miles) in the past, when a long-range radar was hit in the city of Orsk.