The EU's foreign policy chief also denounces that the intelligence services of Germany and the Netherlands have detected the use of chemical weapons in Ukraine by Russian troops. The 18th package of sanctions against Russia remains unapproved in Brussels.

The European Union did not approve the 18th Russia sanctions package on Tuesday, the EU's foreign chief Kaja Kallas said after a meeting with EU foreign ministers in Brussels.

"The government coalition rejects the imbecile proposal of the European Commission to stop the flow of Russian gas from 2028," Slovak Prime Minister Robert Fico said.