A Russian drone strike on a railway station in northeastern Ukraine struck a passenger train and injured dozens of people, Ukrainian President Volodymyr Zelensky said on Saturday.

“A savage Russian drone strike on the railway station in Shostka, Sumy region,” Zelenskyy wrote on X. “So far, we know of at least 30 victims.”

He posted a video of the wreckage of a burning train carriage and another with its windows blown out.

“The Russians could not have been unaware that they were striking civilians,” added Zelenskyy.

Russia struck two trains, first hitting a local passenger train and then another headed for Kyiv, said Ukraine’s Deputy Prime Minister Oleksiy Kuleba.

“Medical teams have already transported the injured to hospitals and are providing necessary assistance. Others (who were at the site) are in shelters overseen by rescuers,” Kuleba wrote on Telegram, according to NBC News.

Moscow has increased air and drone attacks on rail and energy infrastructure ahead of the winter. In a separate attack, a wave of overnight strikes by Russian forces on Saturday cut off power to thousands households in the northern Chernigiv region, according to the AFP news agency.