A Russian missile struck a Ukrainian shopping mall on Monday. There were more than 1,000 people inside, President Volodymyr Zelensky said. “The number of victims is impossible to imagine”, he said.

The mall, which is located in the city of Kremenchuk, was still on fire and emergency responders were at the scene. Initial media reports citing officials said that at least 10 people died in the strike.

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40 others have been injured in the attack, according to news agency AFP citing the Kremenchuk governor’s office.

Zelensky stressed that the target presented “no threat to the Russian army” and had “no strategic value.” He accused of Russia of sabotaging “people’s attempts to live a normal life, which make the occupiers so angry.”

“Russia continues to take out its impotence on ordinary civilians. It is useless to hope for decency and humanity on its part,” Zelensky said.

Here is a video of the mall, as released by Ukrainian authorities:

Earlier on Monday Vitaliy Maletskiy, the mayor of Kremenchuk, wrote in a social media post on Monday: “A rocket attack on Kremenchuk hit a very crowded area, which is 100% certain not to have any links to the armed forces. There are killed and injured people.” He did not specify how many people were killed on injured.

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Russian forces have renewed their assault on major Ukrainian cities. Kyiv officials said the forces were carrying out an all-out assault on the last Ukrainian strongholds in the eastern Luhansk region and have been “pouring fire” on the city of Lysychansk from the ground and air.

The revamped offensive comes as western leaders met in Germany for the G7 summit and reaffirmed support for Ukraine. The United States is also preparing to give Ukraine an advanced surface-to-air missile defense system.