A Russian convoy carrying food, water and other aid set off on Tuesday for eastern Ukraine, where government forces are closing in on pro-Russian rebels, but Kiev said it would not allow the vehicles to cross onto its territory.
Kiev and Western governments warned Moscow against any attempt to turn the operation into a military intervention by stealth in a region facing a humanitarian crisis after four months of warfare.
“This cargo will be reloaded onto other transport vehicles (at the border) by the Red Cross,” Ukrainian presidential aide Valery Chaly said.
“We will not allow any escort by the emergencies ministry of Russia or by the military (onto Ukrainian territory). Everything will be under the control of the Ukrainian side,” he told journalists.
Russian media said the column of 280 trucks had left from near Moscow and it would take a couple of days for it to make the 1,000 km (620 mile) journey to Ukraine’s eastern regions where rebel fighters seek union with Russia.