This picture taken on May 27, 2014 shows security forces standing behing the accused wearing orange vests on trucks during a mass sentencing in Ili prefecture, northwest China's Xinjiang region. Authorities in China's mainly Muslim Xinjiang mounted a mass sentencing in a stadium for 55 people on offences including terrorism, state media said on May 28, as they press a crackdown on escalating violence.  CHINA OUT     AFP PHOTO        (Photo credit should read AFP/AFP/Getty Images)