Iranians launched protests hours after the government announcement in the early hours of Friday that the price of petrol would be raised by 50% for the first 60 litres (16 gallons) and by 300% for anything above that each month.
The country's supreme leader Ayatollah Ali Khamenei, Sunday, cautiously backed the government’s decision to raise gasoline prices after days of widespread protests.
Iran's government has shut down internet access across the nation to staunch demonstrations taking place in 100 cities and towns as reported.
Some protests turned violent, with demonstrators setting fires as gunfire rang out.