Rosenberg: Luhansk strike sparks Russian accusations and vow to retaliate

A five-storey building at the Starobilsk College of Luhansk Pedagogical University in Russian-occupied eastern Ukraine has been reduced to rubble. Teams of rescuers are sifting through debris, with survivors being treated in hospital. Russian officials accuse Ukraine of carrying out a drone attack, while Ukraine denies this and claims it struck a Russian military unit. The incident has sparked an emergency session of the United Nations Security Council and vows of retribution from the Kremlin.