Russia launches large-scale missile attack on Ukraine, damage to critical infrastructure reported.

Ukraine war latest: President's Office confirms Washington allowed Kyiv to strike inside Russia with US arms near Kharkiv

Key updates on May 31: * Presidential Office confirms Washington allowed Kyiv to strike inside Russia with US arms near Kharkiv * 75 Ukrainian prisoners brought back from Russian captivity * Ukraine signs security agreements with Sweden, Norway, Iceland * Ukraine strikes ferry crossing, oil dep...