Ukraine carried out an attack on a key oil pumping station on the Druzhba oil pipeline, which transports oil from Russia to Europe, during the night of Friday, writes The Guardian.

The attack on the pumping station is expected to disrupt oil supplies to Hungary and Slovakia for at least five days, according to the countries.

The pipeline is the last channel for Russian oil to the EU, after the other 25 member states imposed a ban on oil imports from Russia 2022.

“The physical and geographical reality is that without this pipeline, a secure supply to our countries is simply not possible,” the foreign ministers of Hungary and Slovakia write in a joint letter to the European Commission.

Hungary roars back at Ukraine

Hungary in particular is now showing its outrage over Ukraine's attack.

"This is another attack on our country's energy security. Another attempt to drag us into war," Foreign Minister Péter Szijjártó wrote in a Facebook post.

Ukraine has repeatedly attacked Russian oil infrastructure. Friday's attack disrupts oil supplies to Slovakia and Hungary for the second time this week.

On Friday, Hungarian Prime Minister Viktor Orbán also harshly criticized the attacks.

"Hungary supports Ukraine with electricity and gasoline, in return they bomb the pipeline that supplies us with electricity. Very unfriendly move," Orbán writes in a Facebook post.

Supported by Trump

Below the text is a handwritten message, said to be from US President Donald Trump:

"Viktor – I don't like hearing this – I'm very angry about it. Tell Slovakia," it says.

The EU has decided to completely phase out Russian energy supplies by 2027, but both Hungary and Slovakia oppose it. The countries say that the supply of Russian energy is crucial for their economies.