Daily Mail: Huge explosions rock Kyiv hours after dozens were killed in Russian CLUSTER BOMBS attack on Kharkiv * Russians are now using banned cluster munitions against civilian areas, experts and activists have warned * Attack with Grad rockets on shopping centre in Kharkiv today killed dozens and wounded hundreds, Kyiv said * Campaign group Amnesty said similar bombs were used to destroy a school in Okhtyrka, leaving three dead * If Russia is confirmed to have used the weapons it could constitute a war crime, amid warnings that Putin is likely to start resorting to using heavier weapons to turn the tide of war Russia appears to have used banned cluster munitions to indiscriminately shell civilian areas in Ukraine's east that had stood up to Vladimir Putin's invasion in what would constitute a war crime. Kharkiv, which has witnessed some of the heaviest fighting of the war so far, was hit by rockets fired from Russian positions on Monday ...