U.S. officials reportedly told Israel that the United States has improved weapons capable of destroying Iran's underground nuclear site in Fordow.
The world powers will pursue further talks with Iran over its nuclear program, but will not continue them indefinitely, John Kerry said a day after another round of talks failed to produce any new proposals.
Iran said it has made a “comprehensive proposal” to “establish a new bedrock for cooperation” in resumed talks about the Iranian nuclear program between Tehran and six world powers.
Iran's clerical supreme leader said on Thursday the Islamic Republic would destroy the Israeli cities of Tel Aviv and Haifa if it came under attack from the Jewish state.
Vice President Joe Biden said President Obama is "not bluffing" when he says he will stop Iran from acquiring a nuclear weapon.
The United States and top Gulf Arab ally Saudi Arabia said on Monday that talks between Iran and world powers on a diplomatic solution to its disputed nuclear program could not go on indefinitely.
A nuclear inspection team from the United Nation's nuclear watchdog agency will make a one-day visit to Tehran to try to jumpstart talks on Iran's nuclear program.
The New York Times reported on Saturday that the United States and Iran have agreed in principle to hold one-on-one negotiations on Iran's nuclear program but the White House quickly denied that any talks had been set.
Prime Minister Benjamin Netanyahu's U.N. speech about Iranian nuclear advances has dampened speculation in Israel that he could order a war this year.
Israeli Prime Minister Benjamin Netanyahu drew his "red line" for Iran's nuclear program on Thursday - the point at which Iran has amassed nearly enough highly enriched uranium for a single atomic bomb - and voiced confidence that the United States shares his view.
Israeli Prime Minister Benjamin Netanyahu will set out, in his speech at the United Nations on Thursday, an ultimatum for Iran to halt its disputed nuclear drive or risk coming under military attack, an Israeli official said.
President Barack Obama declared on Tuesday the United States will "do what we must" to prevent Iran from acquiring a nuclear weapon as U.N. Secretary-General Ban Ki-moon warned against threatening attacks whose consequences would be devastating.
A wide majority of Israelis either oppose an Israeli strike on Iran or would favor an attack only if it was carried out with U.S. agreement, an opinion poll showed on Thursday.
Iran has conducted work on a trigger for a nuclear weapon and Syria "very likely" was building a nuclear reactor in 2007, the United Nations' nuclear watchdog formally concluded. A report on the progress of Iran's nuclear program issued Tuesday by the International Atomic Energy Agency said that Iran has conducted work on a sophisticated nuclear triggering device to be used to set off a nuclear weapon, The New York Times reported.
The percentage of Arabs who believe a nuclear-armed Iran will help the Middle East situation has doubled since last year.