TEHRAN, Iran — Iran's official state news agency is reporting that all six world powers and Iran have agreed to how to implement a nuclear deal struck in November and that it will start from Jan. 20.

The report Sunday from IRNA quoted Iran's foreign ministry spokeswoman Marzieh Afkham confirming the news. Iran's deputy foreign minister said Friday that the deal was sent to world capitals for their approval. There was no immediate confirmation from the other countries involved.

The deal eases economic sanctions over six months as Iran caps its nuclear program. The world powers — China, France, Germany, Russia, Britain and the United States — would continue negotiations with Iran on a permanent deal.

The West fears Iran's nuclear program could allow it to build a nuclear bomb. Iran says its program is peaceful.