Joint Comprehensive Plan of Action

US President Donald Trump is planning to abandon the Iran nuclear deal shortly, according to US media reports, quoted by BBC.

If he fails to certify the accord, Congress will decide whether to re-impose economic sanctions on Iran. Mr Trump has until 15 October to decide.

Opposition to the deal was a major part of his campaign last year.

The top U.S. military commander has warned against pulling out of the Iran nuclear deal, saying doing so would complicate U.S. efforts to reach agreements with other nations, Radio Free Europe reports. General Joseph Dunford, chairman of the Joint Chiefs of Staff, made the comments September 26 in testimony before the Senate Armed Services Committee.

Iran has all options on the table, including pulling out of the 2015 nuclear agreement and bolstering its nuclear program at a "greater speed," should President Trump decertify the pact, Foreign Minister Javad Zarif told CNN.

The United States and Israel have united in slamming Iran during the annual United Nations General Assembly, with the leaders of both countries directing accusations at Tehran.

Iran's President Hassan Rouhani said in a meeting with his Bulgarian counterpart Rumen Radev on Tuesday that economic and private sectors in the two countries should be encouraged and supported to strengthen their ties and enhance cooperation, IRNA reported.

The United States is "seeking excuses" to tear up the nuclear deal with Iran by demanding military site inspections, one of the Islamic republic's top security officials said on Sept. 15.

"Iran has no undisclosed nuclear activity in any geographical location in the country," the secretary of the Supreme National Security Council, Ali Shamkhani, said on state television.

Washington's ambassador to the United Nations warned Sept. 5 that, if left unchanged, the Iran nuclear deal could allow Tehran to pose the same kind of missile threat to U.S. cities as North Korea.

Iran can resume high-level uranium enrichment within five days if the United States tears up the nuclear deal, the head of its Atomic Energy Organisation said Aug. 22.

"If we make a determination, at most in five days we can start 20 percent enrichment in Fordo (nuclear plant)," said Ali Akbar Salehi in an interview with state broadcaster IRIB. 

Iran's President Hassan Rouhani said on Aug. 20 that  the top foreign policy priority for his new government was to protect the nuclear deal from being torn up by the United States.

Iran should not withdraw from the landmark international nuclear monitoring agreement brokered two years ago, Russian Foreign Minister Sergey Lavrov said Tuesday, quoted by Anadolu Agency.