Officials say Russian missile and drone attacks on Ukraine overnight into Saturday have killed at least four people and wounded 20. In Kyiv, two people were killed and 13 were wounded in a ballistic missile attack. In the Dnipropetrovsk region, two more were killed and seven wounded. Ukraine's air force said it intercepted four missiles and 50 drones. Ukrainian President Volodymyr Zelenskyy has renewed calls for Western air defense systems, emphasizing the need for Patriot systems to protect cities. Zelenskyy is seeking to purchase 25 Patriots from the U.S. to bolster Ukraine's air defenses.