Ukraine’s interior minister says Russian attacks on Monday killed 14 people and wounded at least 60 others across multiple regions of Ukraine, with reports of heavy shelling and damage to residential areas. Russia’s latest assault came as President Vladimir Putin said he would declare a unilateral ceasefire in Ukraine for Friday and Saturday as Russia marks Victory Day, commemorating the 81st anniversary of the defeat of Nazi Germany in World War II.

Meanwhile, Russia faces a growing environmental disaster along its Black Sea coast after Ukraine struck the oil-refining port of Tuapse for the fourth time in less than three weeks. The attacks created large oil spills, huge clouds of acrid smoke and toxic black rain that fell on residents and contaminated more than 30 miles of coastline.