Security officials in China’s violence-stricken north-west have ordered residents to install GPS tracking devices in their vehicles so authorities are able to keep permanent tabs on their movements. The compulsory measure, which came into force this week and could eventually affect hundreds of thousands of vehicles, is being rolled out in the Bayingolin Mongol Autonomous Prefecture of Xinjiang, a sprawling region that borders Central Asia and sees regular eruptions of deadly violence. The move comes amid an apparent spike in killing that authorities blame on Islamist extremists and separatists but experts say is also fuelled by ethnic friction between Han Chinese migrants and members of the predominantly Muslim Uighur minority to whom Xinjiang is home. Read more
