Nazanin Zaghari-Ratcliffe has filmed herself cutting her hair in solidarity with protesters in Iran after the death of Mahsa Amini.
Protests are continuing after 22-year-old Ms Amini died in police custody after allegedly breaching rules that require women to cover their hair with a hijab.
British-Iranian Ms Zaghari-Ratcliffe, who spent six years in prison in Iran, sent the footage to BBC Persian to show her solidarity with protesters.