Pakistan police start operation to disperse demonstrators in Islamabad

A tear gas shell is seen at the site of an operation against the activists of a religious group in Islamabad, capital of Pakistan, on Nov. 25, 2017. Pakistani police on Saturday morning began to carry out operation against the activists of a religious group, who launched a sit-in protest that blocked the main highway to the capital Islamabad for 20 days. (Xinhua/Liu Tian)