KIEV. Feb 14 - Further blocking of rail cargo traffic to and from Donbas will lead to a crisis in the energy and metallurgical sectors, Prime Minister Volodymyr Groysman said, adding that the supply of critical goods should be unblocked.

"Certain Ukrainians have been trying to thwart the heating season and to initiate rolling blackouts with their own hands. This is inadmissible; we should make a distinction between a crackdown on contraband and a fight against the Ukrainian people," he said in the opening remarks at a governmental meeting in Kiev on Tuesday.