US President Donald Trump participates in a session on reforming the United Nations at UN Headquarters in New York, US, September 18, 2017.

:: US President Donald Trump said on Wednesday that he had made a decision on whether or not to pull the United States out of the 2015 nuclear deal between Iran and world powers, but he declined to say what it was.

Trump, when asked by reporters, said: “I have decided.”

If Trump does not certify in October that Iran is complying with the agreement, the US Congress will have 60 days to decide whether to reimpose sanctions waived under the pact.

Iran is prepared for all possible scenarios if US President Donald Trump scraps a nuclear deal reached between Tehran and six major powers in 2015, a senior Iranian official told Reuters on Wednesday.

“Iran is ready for any possible scenarios if Trump walks out of the deal. That includes immediately resuming its nuclear work that was curbed under the deal,” said the official on condition of anonymity.