Iran on Tuesday strongly condemned fresh sanctions imposed by the European Union and Britain and said it would retaliate, after the West stepped up pressure on Iran over its crackdown on protests.

Tehran “will soon announce the list of new sanctions against the human rights violators of EU and England," Iran's Foreign Ministry Spokesperson Nasser Kanaani said in a statement.

The European Union imposed sanctions on more than 30 Iranian officials and organizations, including units of the Revolutionary Guards (IRGC), blaming them for a "brutal" crackdown on unrest and other human rights abuses.

Some EU governments and the European Parliament have made clear they want the IRGC as a whole added to the bloc's list of terrorist organizations. But the EU's foreign policy chief, Josep Borrell, noted that could only happen if a court in an EU country determined the IRGC was guilty of terrorism.

The United States and Britain also issued new sanctions against Iran, reflecting a deterioration in the West's already dire relations with Tehran.

The sanctions are the latest response to Iran's deadly clampdown on unrest after the death of young Iranian Kurdish woman Mahsa Amini in morality police custody in September.