内容摘要：and planning another one, in a case which authorities believe may be linked to Russia.

and planning another one, in a case which authorities believe may be linked to Russia.

, though much likely remains to be agreed before reaching a tentative deal.Iran has insisted for decades that its nuclear program is peaceful. However, its officials

. Iran now enriches uranium to near weapons-grade levels of 60%, the only country in the world without a nuclear weapons program to do so.Under the original 2015 nuclear deal, Iran was allowed to enrich uranium up to 3.67% purity and to maintain a uranium stockpile of 300 kilograms (661 pounds). The last report by the International Atomic Energy Agency on Iran’s program put its stockpile at 8,294.4 kilograms (18,286 pounds) as it enriches a fraction of it to 60% purity.U.S. intelligence agencies assess that Iran has yet to begin a weapons program, but has “undertaken activities that better position it to produce a nuclear device, if it chooses to do so.”

Ali Larijani, an adviser to Iran’s supreme leader, has warned in a televised interview that, but it is not pursuing it and has no problem with the IAEA’s inspections. However, he said if the U.S. or Israel were to attack Iran over the issue, the country would have no choice but to move toward nuclear weapon development.

“If you make a mistake regarding Iran’s nuclear issue, you will force Iran to take that path, because it must defend itself,” he said.

Iran was once one of the U.S.’s top allies in the Mideast underFour people were injured in the attack on the capital, Kyiv Mayor Vitali Klitschko said. Associated Press journalists heard explosions and the buzzing of drones around the city for hours.

The fresh attacks came hours after Moscowat Ukraine in the biggest overnight drone bombardment in the three-year war. Ukrainian and Western officials have been anticipating a Russian response to

on distant Russian air bases.Plumes of smoke were visible in Kyiv as air defense forces worked to shoot down drones and missiles Tuesday morning.