An Iranian-British woman who took part in a demonstration in Tehran against a ban on women attending some men's sporting events was jailed for a year for spreading anti-state propaganda, Iranian media said.
Ghoncheh Ghavami, 25, was arrested on June 20 outside the city's Azadi Stadium, where she and others were demanding that women be allowed in to watch a volleyball match between Iran and Italy.
She was charged by a court in Tehran with activities and propaganda against the Islamic Republic. The semi-official ILNA news agency quoted her lawyer, Alireza Tabatabaie, on Saturday as saying her sentence may be cut due to previous good behavior.
Ghavami was released soon after her arrest in June but was re-arrested days later when she was called back to reclaim personal belongings that authorities had confiscated. In October, she went on a two-week hunger strike.
Britain, which has no permanent diplomatic presence in Iran but has said it plans to reopen its embassy soon, had previously protested Ghavami's detention. There was no immediate comment on Sunday from the foreign ministry in London.
Iranian women in the Islamic Republic are banned from watching certain male sports events such as football and volleyball.
Tabatabaie said "various reasons" had prevented him from meeting his client in the lead-up to Saturday's hearing.
Ghavami's detention came shortly before the arrest in July of another dual-nationality citizen, Jason Rezaian, an Iranian-American reporter for the Washington Post, who is being held without charge.
His mother and brother called last week for the 38-year-old's release. "After 100 days it's time for Iran to concede Jason's innocence and release him," Mary Breme Rezaian and Ali Rezaian wrote in a statement posted online on Thursday.
The United States has no direct diplomatic relations with Iran.