ISLAMABD: Interior Minister Chaudhry Nisar Ali Khan will visit Quetta within the next three days after Prime Minister Nawaz Sharif instructed him following the killing of as many 31 policemen in firing and bomb attacks in Balochistan’s provincial capital on Thursday. However, sources said that the provincial government has appealed to the minister to postpone his trip for three days. The volatile southeastern province, which is rife with sectarian and ethnic violence, has seen no relief despite the change of governments in Islamabad and Balochistan.