President Volodymyr Zelensky says Russia has widened its attacks to target Ukraine's data centres and internet providers, seeking to cause maximum disruption for ordinary people. "All this affects people's ability to stay connected, study, work," he said.

On Friday a Russian drone hit a business centre in the capital Kyiv, killing four people and damaging a data centre. A separate attack killed a 14-year-old boy. Russia confirmed it had targeted a data centre site, saying it was being used by Ukrainian military intelligence. About 100,000 households in Kyiv and the region suffered internet outages on Wednesday due to strikes.

In Friday's social media post, Zelensky wrote: "The Russians are constantly expanding their escalation operation: American and other businesses, data centres, internet providers – for Russia, all ordinary life is simply a target." Ukraine's Foreign Minister Andrii Sybiha has said that Russia was seeking to disrupt the flow of "life-saving information" by targeting data centres.

The latest data centre hit by Russia is run by Datagroup. Kyiv Mayor Vitaliy Klitschko said on Friday evening that seven people had been killed and 59 injured after Russian overnight attacks.