International groups have called for the release of two human rights activists arrested after protesting at the Acropolis in Athens on Sunday against the Beijing 2022 Winter Olympics. The two student activists—18-year-old Tibetan student Tsela Zoksang and 22-year-old exiled Hong Kong activist Joey Siu—were being held in detention until Monday morning in Athens pending an appearance in court at 10 a.m. local time. Both women are U.S. citizens. “We call on the Greek authorities to resist any pressure from the Chinese government to extradite these activists, to release Joey Siu and the Tibetan activist Tsela Zoksang as a matter of urgency, and to allow them to return to the United States of America,” said UK-based advocacy group Hong Kong Watch in an Oct. 17 statement. The two activists attempted to hang a banner in the Acropolis early on Sunday morning to protest the upcoming Beijing Winter Olympics. The Olympic torch …