According to Human Rights Watch annual report 2016, Emirates authorities forcibly disappeared and detained people who criticised the government or its allies. February 2015, Human Rights Watch documented a case in which three Emirati sisters, Asma, Mariam, and Al Yazzyah al-Suweidi, were forcibly disappeared by Emirates authorities. They released them without charge after spending 3 months in incommunicado detention. The three sisters had arrested after posting comments criticising government for arresting their brother Dr. Issa al-Suweidi. In August 2015, Emirati academic Nasser bin Ghaith was arrested after posting some comments on social media in which he criticised the mass killing of Rab'a protesters in Cairo in 2013. Bin Ghaith's fate still unknown at time of writing.