A "massive" Russian missile and drone attack on energy infrastructure has caused power cuts across Ukraine, the energy operator says

Russia launched a "massive" attack on several Ukrainian cities overnight on Monday, President Volodymyr Zelensky has said, a day after he warned of strikes over the Christmas period.

On Sunday night in the Odesa region, strikes cut off electricity for 120,000 people and sparked a fire at a major port which destroyed dozens of containers of flour and vegetable oil.