Russia launched one of its deadliest night assaults on Ukraine for months in the early hours of Tuesday, the day after Donald Trump said he was setting a new deadline of “10 or 12 days” for Russia to make progress towards ending the war or face new sanctions.

A series of Russian strikes across the country killed at least 25 people, Ukrainian officials said, including a 23-year-old pregnant woman and more than a dozen prison inmates. About 100 people were injured across the country.