International Atomic Energy Agency Director General Rafael Grossi has been under continuous armed protection in Vienna since late June after Austrian intelligence identified a specific threat against him from Iran-linked actors, according to people briefed on the matter and a Wall Street Journal report. Austria’s interior ministry assigned the elite Cobra special operations unit to provide round-the-clock security for the U.N. nuclear watchdog chief at his residence, office and during travel. The measures were put in place after security agencies concluded the threat was credible and could be carried out on Austrian soil. Tehran has publicly accused Grossi and the IAEA of abetting Israel’s mid-June airstrikes on Iranian military sites, which were followed by U.S. air attacks ordered by President Donald Trump. Iranian officials have not commented on the reported plot, but the episode further strains already fraught relations between Iran and the U.N. agency. The heightened security comes as Vienna remains the hub for stalled talks on reviving limits on Iran’s nuclear program, raising concerns that intimidation of the agency’s leadership could complicate future inspections and diplomacy.