https://cdnph.upi.com/ph/st/th/8221781106307/2026/upi/f4472d0df4c72eb15107883f9aa39dbd/v1.5/Ukraine-hits-key-Russian-military-plant.jpg" /> Ukrainian missiles hit a key Russian military factory more than 620 miles into the country, Ukrainian President Volodymyr Zelensky said.