Iranian authorities warned young people against using the traditional fire festival as the starting point for various revolutionary activities.

This year, the ritual falls on the night of March 15.
Avaie asked "young people and their families to act wisely and logically to avoid being trapped by the counter-revolution", warning that the judiciary will take action against all those who "disturb the peace."
The festival is a prelude to Nowrouz, the Persian New Year which starts on March 21 and marks the arrival of spring.
Iranians celebrate the occasion by lighting bonfires in public places and leaping over the flames shouting, "Give me your redness and I will give you my paleness," with red symbolising good health.
Opposition websites warned some three weeks ago they would incite street protests on the day of the festival if the isolation imposed on opposition leaders Mir Hossein Mousavi and Mehdi Karoubi had not been lifted.
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Last year, Iran’s supreme leader Ayatollah Ali Khamenei urged Iranians to shun the festival as an un-Islamic event which causes "a lot of harm and corruption" and has no "basis in sharia", Islamic religious law.
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Ahead of the festivities, the police announced the seizure of more than 10 tonnes of fire crackers and hazardous flammable and explosive devices.
Source-AFP