London, 13 Mar - The fire festival of Chaharshanbe Suri is a celebration that takes place every year just before Iranian New Year, or Nowruz. Its origins are pre-Islamic and it is a tradition that Iranian government has tried to stop the people from celebrating.
Iranian people jump over fires which symbolises purification. The tradition is to prepare the people for the new year.
Activists in Iran have chosen to hold anti-government demonstrations on the same day.