Russia launched waves of Shahed drones against Kharkiv overnight, with the regional governor saying four people had been killed and 12 wounded. At least 15 drones were used to attack Ukraine’s second-biggest city, some of which were shot down by air defences. Kharkiv has become a frequent target in recent weeks. The eastern city is close to the border with Russia and has been hit with both ballistic missiles and drones Russia-Ukraine war: latest updates