A bitter dispute pitting Hungary and Slovakia against Ukraine is holding up a crucial €90bn (£77.95bn) EU loan to Ukraine.

No oil has flowed through the Druzhba (Friendship) pipeline, from Russia to Hungary and Slovakia across Ukraine, since the major oil hub at Brody, in western Ukraine, was damaged in a Russian attack on 27 January.

While Ukraine argues that it will need six more weeks to repair the damage and restore the oil flow, Budapest accuses Kyiv of stalling, as revenge for Hungary's pro-Russian and anti-Ukrainian position.

The dispute underlines how one or two countries can block EU decision-making, while Hungary and Slovakia struggle with fuel access after refusing to diversify away from Russian oil since 2022.

The Brody pumping station in Ukraine's western Lviv region is crucially important for the transit of Russian oil to Hungary and Slovakia.

Satellite images show that the Russian strike on 27 January damaged a key part of the facility, causing a massive tank used for oil storage to catch fire, significantly affecting its operations.

Ukrainian officials claim extensive damage to the pumping station will require significant time and resources to repair, which are currently under strain due to the ongoing war. Meanwhile, European leaders are looking to intervene with technical assistance to expedite the restoration of the pipeline.

Despite these complications, Hungary has begun importing oil from other sources, but lacks the infrastructure to process non-Russian oil effectively, further complicating the regional energy landscape.