(ANSA) - BELGRADE, FEB 28 - "Zelensky rejected yesterday the Hungarian and Slovak governments' proposal for a joint agreement. Ukraine's oil blockade demonstrates President Zelensky's willingness to go to any length. The refinery and other key energy facilities will be jointly protected by soldiers and police beginning today," Hungarian Prime Minister Viktor Orbán said in a video posted on X by his spokesman, Zoltán Kovács. "In a critical situation, the Hungarian people can rely on the Hungarian Defence Forces and police. Hungary will continue to resist President Zelensky's blackmail and will not comply with his demand to resume oil supplies via the Druzhba pipeline," Orbán added. (ANSA).