From WSJ:
Rescue teams haven’t been able to locate a helicopter carrying Iranian President Ebrahim Raisi that made a “difficult landing” in northwestern Iran, the country’s interior minister said Sunday, without providing any information on his condition.
Drones, dogs and search and rescue teams were being used to try to locate the helicopter as fog and bad weather made the work difficult, the interior minister, Ahmad Vahidi, said on Iranian state television. Aboard the helicopter was also the foreign minister, Hossein Amir-Abdollahian, state TV said.
Iran government spokesman Ali Bahadori-Jahromi said at 8 p.m. in Tehran, roughly five hours after the crash, that there was no news on the status of the passengers, given the remote location of the site and inclement weather.