In Pakistan, at least four people were killed and 19 injured on Saturday in a suicide attack on security forces in Balochistan province. <br/><br/>Officials said, the attackers targeted a security forces' convey when it was passing through Sariab road in the provincial capital Quetta. <br/><br/>A spokesperson for Civil hospital Quetta said that some of the injured are in critical condition as they were hit by shrapnels in the attack. <br/><br/>No group has claimed responsibility for the attack but Taliban militants and Baloch nationalists often target security forces in the area.<br/><br/>The attack came a day after senior police official of Khyber-Pakhtunkhwa Ashraf Noor was killed in a suicide attack on his vehicle in the upscale Hayatabad neighbourhood of Peshawar.