LVIV Ukraine, March 13 (Reuters) - Ukraine’s human rights ombudswoman accused Russia on Sunday of using banned phosphorus munitions in an overnight attack on the town of Popasna in Ukraine’s eastern Luhansk region. Reuters was not immediately able to verify her statement.

The ombudswoman, Liudmila Denisova, shared a photograph purporting to show the alleged attack, but did not say if Ukraine had concrete evidence.

"The bombing of a civilian city by the Russian attackers with these weapons is a war crime and a crime against humanity according to the Rome convention,” she said in an online statement. (Reporting by Natalia Zinets and Max Hunder Writing by Alessandra Prentice; editing by Philippa Fletcher)