Iran is examining the latest US proposal received from mediator Pakistan in talks to end the Middle East war, despite the two sides trading threats over resuming attacks.
US President Donald Trump said Washington was in the "final stages" of negotiations with Iran, adding that he would either secure a deal or take "some things that are a little bit nasty".
Iran's foreign ministry spokesman Esmaeil Baqaei said the Islamic republic had "received the points of view of the American side and we are currently examining them".
The two countries have continued to take part in diplomatic exchanges, mediated by Pakistan, aimed at bringing a formal end to the war.
Global oil prices fell more than five percent on hopes of a deal, while Saudi Foreign Minister Prince Faisal bin Farhan praised Trump for giving diplomacy a chance.
