A campaign on Mohammadi's behalf said she would be free for 21 days, but would have to serve the remaining prison time later.

The activist, whose health has deteriorated, had bone surgery last month. She was just 19 when Iran’s morality police detained her.

Iranian authorities on Wednesday freed Nobel peace prize winner Narges Mohammadi from prison for three weeks on medical grounds, a move supporters decried as "too little too late" with the