Geneva, Sha'ban 05, 1435, June 03, 2014, SPA -- The United Nations human rights chief, Navi Pillay voiced today concern about the detention of civil society activists, lawyers and journalists in China ahead of the 25th anniversary of the Tiananmen Square protests, while also stressing the need to establish the facts surrounding what transpired between 3 and 4 June 1989. There are reports that the authorities have been placing anniversary-related restrictions on social media, traditional media and internet usage. “Rather than stifle attempts to commemorate the 1989 events, the authorities should encourage and facilitate dialogue and discussion as a means of overcoming the legacy of the past,” stated Ms. Pillay, who also stressed the need to carry out a truth-seeking process into the events. -- SPA 21:40 LOCAL TIME 18:40 GMT www.spa.gov.sa/w