The large-scale attack comes days after Trump says Putin had "very strongly" promised response to Ukraine "Spider web" attack.

Ukrainian drones struck two Russian airbases, a fuel depot and a missile and aviation plant overnight, Ukraine’s military claimed Friday, as both sides ramp up long-range attacks. “A successful strike was carried out on the Engels airfield in the Saratov region,

Ukraine says that a large Russian drone-and-missile attack has targeted the eastern city of Kharkiv, killing at least three people and injuring 21.