Ukrainian President Volodymyr Zelensky has condemned as 'terrorism' a Russian drone attack on a crowded passenger train that local officials say killed at least five people and injured several others. More than 200 people were on the train, officials said, when one of the carriages was hit by a drone and two other drones exploded nearby, in Ukraine's north-eastern Kharkiv region on Tuesday. Zelensky said 18 people were in the carriage at the time and there was no 'military justification' in targeting civilians.

Russia has not commented on the strike, but it has intensified drone and missile attacks on Ukraine's energy and transport infrastructure during the harshest winter in years.

Elsewhere in Ukraine, the southern port city of Odesa was hit by dozens of drones, leading to three deaths and numerous injuries, while a residential building in the Kyiv region was struck, resulting in casualties including a four-year-old. Millions in Ukraine continue to suffer due to loss of heating, electricity, and water amid the ongoing assaults.

In a social media post, Zelensky starkly stated, 'In any country, a drone strike on a civilian train would be considered in exactly the same way - purely as terrorism.' This incident adds to the increasingly dire humanitarian situation as Russia maintains its assaults following recent, albeit constructive, peace talks aimed at ending the conflict.