Iran has warned it will ramp up its nuclear activities after the United Nations nuclear watchdog’s 35-member board of governors adopted a resolution Thursday declaring it in breach of its non-proliferation obligations.

Tehran retaliated by announcing the launch of a new uranium enrichment center and the installation of advanced centrifuges – an escalatory move likely to complicate nuclear talks with the United States set to resume this weekend.

Nations attending the International Atomic Energy Agency (IAEA) board meeting in Vienna voted on the resolution, with 19 in favor, 3 against and 11 abstentions, Reuters reported.

The IAEA has previously accused Iran of non-cooperation but Thursday’s move marks an official finding of non-compliance and raises the prospect of escalating the issue to the UN Security Council.

The resolution was tabled by European countries and the US after a May 31 IAEA report found Iran to be non-compliant in its nuclear duties, including failing to answer questions on uranium particles found in undeclared sites in the country, and its stockpiling of uranium enriched to nearly weapons grade. Iran says the IAEA report was politicized.

Uranium is a nuclear fuel that, when highly enriched, can be used to make a bomb. Iran maintains that its nuclear program is for peaceful purposes.

Tehran condemned the US, the United Kingdom, France and Germany for tabling the resolution and said it has “no option but to respond.”