Ukraine accused Russia of sending weapons and ammunition into war-torn areas of eastern Ukraine under the guise of humanitarian aid after a column of 106 white trucks crossed the border from Russia on Sunday. It was the eighth such mystery shipment in the white trucks to arrive from Russia since August. “The lion’s share of these so-called humanitarian cargoes finds its way to combatants,” Andriy Lysenko, a Ukrainian military spokesman, said in televised comments on Sunday. Russia openly acknowledges sending the trucks but denies that they carry military aid.