In eastern Ukraine, Russia’s military says an attack by Ukrainian forces using a U.S.-made advanced missile system has killed 40 Ukrainian prisoners of war and wounded dozens of others. Ukraine denied its forces carried out the attack in separatist-held territory, and instead blamed Russia for the strike on a prison housing the POWs. Meanwhile, United Nations officials say they’re hopeful that a U.N.- and Turkey-brokered deal to safely export grain from blockaded Ukrainian ports could begin as early as today.