Ukraine is accusing separatist rebels of killing dozens of refugees. The Ukraine government says the rebels attacked a convoy of civilians trying to flee the war-ravaged east, which has seen intensified violence in recent months. Rebel leaders have either denied an attack took place or claimed Ukraine was responsible for any casualties that may have occurred. There has been no independent confirmation of either side’s claims. The United Nations says more than 2,000 have died since fighting erupted in April, with more than half killed in just the last two weeks.