Russia launched another ballistic missile attack on Kiev overnight, killing at least two people, as Ukrainian drones struck targets deep inside Russia, including a major air base and an oil storage facility,

Ukraine hits six Russian tankers, military says Ukraine's military struck six Russian tankers and two tugboats in the Black Sea and Sea of Azov overnight, the military's General Staff has said.

The ramp-up of the naval strikes comes alongside a months-long Ukrainian campaign to hit Russian refineries to cripple fuel supply and deepen the fuel crisis in Russia.