BRUSSELS (Reuters) - EU leaders agreed on Monday to ban the export of Russian oil to the 27-nation bloc, EU Council President Charles Michel said.

       "This immediately covers more than two thirds of oil imports from Russia, cutting a huge source of financing for its war machine," Michel wrote on Twitter.

       The leaders also agreed to cut off the largest Russian bank Sberbank from the SWIFT system and to ban three more Russian state-owned broadcasters, he added.

       (Reporting by Ingrid Melander, John Chalmers, Jan Strupczewski, Sabine Siebold and Marine Strauss)