The riots in Ürümqi in July caused more than 200 deaths and led to the imposition of martial law. Though there were differing accounts of who was to blame – the police, for firing on ‘peaceful protestors’, or terrorists whose ‘goal was to undermine the social order’ – the violence was generally perceived as being due to resentment between Han Chinese and the Uighur minority. On 17 August there were reports that people in Ürümqi had been attacked with hypodermic syringes. There were no casualties, and it was unclear who was responsible. But in the following weeks, as the stabbings continued, Han residents began to claim they were being targeted. The government confirmed that most of the victims were Han, but stressed that Uighurs and other ethnic groups had also been attacked. By 3 September the hospitals had reported a total of 531 cases. However, only 20 per cent of these showed any signs of physical injury, which suggests that the greater problem was the fear created by the attacks.