Iranian women are posting videos of themselves dancing, in support of a teenage Instagram star who was arrested.

Maedeh Hojabri, an 18-year-old gymnast, was detained by police after she posted a video of her dancing to Western pop music in her bedroom.

It shows her without a mandatory headscarf, which is obligatory in the conservative Islamic republic.

Social media users have shared their own videos and messages of support for Miss Hojabri using the hashtag #dancing_isn't_a_crime.

Some women can be seen without their headscarves, but their faces covered. Others dance in public.

“I danced in the artists' park (in Tehran) without my compulsory hijab,” wrote one woman. “The person playing the instrument cut my performance short and left the scene because of the fear that his instruments would be confiscated if police saw a woman dancing. I can understand his fear, but I continued dancing to support Maedeh Hojabri.”