She appeared on state TV broadcast on Friday and confessed breaking moral norms, though unintentionally. I didn't work with a team, I received no training.
Since 2017, FATA has arrested many women charged with publishing un-Islamic photos and videos on social media.
Gymnast Maedeh Hojabri, 18, gained a large social media following for her dance videos set to Western and Iranian pop and rap music. According to the Associated Press, Iranian authorities are considering blocking access to Instagram, but no final decision has been made.
With hashtags that translate as #dance to freedom and #dancing_isn't_a_crime, Iranian women, many also without the mandatory hijab, have started posting their own videos in support of Hojabri.
Women in Iran have been protesting against Iran's strict modesty laws for years now through dance.
"I'm dancing so that they (the authorities) see and know that they can not take away our happiness and hope by arresting teenagers and (girls like) Maedeh", the BBC translated the tweet of one supporter. Another post showed a man holding a birthday cake and dancing, with the comment, "dancing isn't a crime".
In June during the FIFA World Cup 2018, women were for the first time allowed to watch Iran's matches on big screens at the Azadi Stadium in Tehran.
Since it is hard for women to play an active part in public life, communicating on social media platforms like Telegram and Instagram has become extremely popular. Last August, six people were reportedly arrested for Zumba dancing. Their sentence - one year in prison and 91 lashes - was later suspended.