Hungarian Prime Minister Viktor Orban says he has stationed soldiers at key energy facilities across the country after he blamed Ukraine for disrupting energy supplies.
Orban has accused Kyiv of imposing an "oil blockade" on Hungary by deliberately delaying the reopening of the Druzhba pipeline, the main route for delivering Russian oil to Hungary and Slovakia.
Shipments of Russian oil to Hungary and Slovakia through the pipeline have been cut off since 27 January, with Kyiv saying it was closed after Russian strikes. Orban said the suspension of the critical oil flow was purely political and that Ukraine was "preparing further actions".
Ukraine did not immediately respond to Orban's comments.