Iranian rescue teams resumed their search on Monday for a passenger plane that disappeared high in the Zagros mountains the previous day with 66 people onboard, local media reported.
State television said the weather had improved after blizzard conditions hampered search efforts Sunday, and that helicopters were now able to take part in the hunt for Aseman Airlines flight EP3704.
The authorities had called off the rescue effort overnight as heavy snow and rain made it impossible to work.
The ATR-72 twin-engine plane, in service for 25 years, left the capitals Mehrabad airport around 8.00 am on Sunday and was heading towards the city of Yasuj, some 500 kilometres to the south. It is thought to have crashed on the Dena mountain of Irans southwestern Zagros range.