When a Ukrainian strike hit Russian-occupied Starobilsk on May 22, Moscow seized on the attack almost instantly, with Russian officials claiming that 21 students of a local vocational college were killed and dozens more injured and portraying the strike as a deliberate attack on civilians — which Ukraine denied.

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Ukraine's military reportedly carried out drone attacks on various Russian regions overnight on June 12, striking multiple petrochemical plants as far as over 1,200 kilometers (620 miles) from the Russia-Ukraine border, Russian Telegram media channels reported.