A young women’s rights activist in Saudi Arabia was secretly sentenced to 11 years in prison by an anti-terrorism court after being arrested for “her choice of clothing and support for women’s rights”.

Saudi officials confirmed in a statement to the United Nations high commissioner for human rights that Manahel al-Otaibi was sentenced on 9 January for what the Saudi government called “terrorist offences”.

Al-Otaibi, who was sentenced in a secret hearing before the counter-terrorism court, was found guilty of charges related to a Saudi anti-terror law that criminalises the use of websites to “broadcasts or publishes news, statements, false or malicious rumors, or the like for committing a terrorist crime”.

Among other charges, Otaibi was accused by Saudi authorities of using a hashtag – translated to #societyisready – to call for an end to male guardianship rules.

Her case follows a slew of similar cases in which Saudi women, in particular, have been subjected to draconian sentences for using social media accounts to express themselves. They include women such as Salma al-Shehab, sentenced to 27 years, Fatima al-Shawarbi, sentenced to 30 years, Sukaynah al-Aithan, sentenced to 40 years, and Nourah al-Qahtani, sentenced to 45 years.