New Delhi, March 22 -- Hungarian Prime Minister Viktor Orban on Friday raised the prospect of further actions his government could take against Ukraine to force the resumption of Russian oil deliveries that have been stalled to Hungary and Slovakia since January.

Speaking to media in Brussels a day after he blocked a 90-billion euro ($104-billion) European Union loan to Ukraine, Orban said he and his government have "a lot of cards in our hands" beyond holding up the financial aid Kyiv needs to equip its armed forces and keep its economy running.

"We have other tools as well," he said. "Forty percent of Ukraine's electricity supply goes through Hungary, we haven't touched that yet. (The EU) constantly wants to introduce new sanctions (a...