Schools and government offices are shut in the Iranian capital and elsewhere in the country after yet another sandstorm blanketed Tehran, state TV reports.
The report says the air quality is very poor and that the pollution from the dust is high. It is the third severe sandstorm in Iran since mid-April.
Last week, authorities also shuttered schools in Tehran and other provinces because of a similar sandstorm but today marks the first time government offices closed in Tehran due to a sandstorm.
Yesterday, airports in western Iran saw dozens of flights canceled or delayed.