Iran's foreign ministry on Sunday said the country will not participate in an informal meeting with the United States and European powers to discuss reviving the nuclear deal.

The European Union offered to hold the talks, but this is "not the time" for such a gathering, spokesman Saeed Khatibzadeh said. Under former President Donald Trump, the U.S. abandoned the 2015 nuclear deal, and reimposed economic sanctions. Iran refused to renegotiate and instead began ignoring its commitments under the deal.

Tehran has said in order for there to be talks, the U.S. must lift sanctions, which the U.S. has ruled out. A White House spokesperson said on Sunday the U.S. will consult with the other countries that signed the nuclear deal — the United Kingdom, France, China, Russia, and Germany — to determine "the best way forward."