European and Iranian diplomats have arrived in Istanbul in a renewed effort to resolve the standoff over Tehran's nuclear program. The talks mark the first formal engagement since June's 12-day war between Iran and Israel, a conflict that included U.S. airstrikes on Iranian nuclear facilities and heightened tensions across the region.

France, Britain, and Germany are set for in-person talks with Iran in Istanbul, aiming to rekindle negotiations on Iran's nuclear program and avert international sanctions. With an impending October deadline and Russia's upcoming Security Council presidency,

Iranian representatives will meet with negotiators from Britain, France and Germany on Friday, days after they threatened to restore economic restrictions.