Ukraine's decision to add the Russian company Lukoil to the sanctions list, which led to the suspension of oil transit, is "unacceptable" and "violates the Ukraine-EU Association Agreement, Hungarian Foreign Affairs and Trade Minister Peter Szijjártó said.

At a press conference in Brussels, where a meeting of the Foreign Affairs Council was held on Monday, Szijjarto said Kyiv's decision, according to which Lukoil is prohibited from transporting oil supplies through Ukraine, threatens the security of energy supplies to Hungary and Slovakia.

"This decision is unacceptable and incomprehensible from a country seeking to join the EU," he said.

According to the minister, this step "violates the Ukraine-EU Association Agreement which prohibits interrupting the transit of energy resources." Szijjártó said Hungary and Slovakia had jointly asked the European Commission to start a consultation process, and if the matter was not resolved it could be referred to arbitration, which could affect agreements between the EU and Ukraine.

"Today, together with Slovakia, we initiated this consultation procedure – because this is an urgent issue, since energy supply is an acute problem. The EU has three days to carry out the consultation procedure," he said.

According to him, the situation is currently stabilized with the help of "temporary solutions," but in the long term, without Lukoil supplies, it is impossible to ensure the security of oil supplies to Hungary and Slovakia.

"We have been and are constantly negotiating with the Slovak Republic to resolve this situation. The other day I also spoke on the phone with the Minister of Foreign Affairs of Ukraine, who said that all types of supplies are allowed through Ukraine, which is clearly not true," Szijjártó said.