A senior police official speaking on condition of anonymity told AFP that "teams are now raiding different areas to arrest those who escaped".
Among the dead was Asghar Sumalani, a junior commander in the regional chapter of Islamic State-Khorasan (IS-K). He had a two million rupee (US dollar 11,400) bounty on his head.
Pakistani officials have long played down the presence of IS-K in their country. But the group has claimed responsibility for numerous attacks, including the slaying of 11 miners from the minority Shiite Hazara community last year.
Some of the miners were beheaded after being kidnapped from a remote coal mine in the mountainous Machh area, 60 kilometres (37 miles) southeast of Quetta.
IS-K has deep roots in several provinces in eastern Afghanistan along the porous border with Pakistan. The group carried out a suicide bombing at Kabul airport in August, killing scores including 13 US service members, as the Taliban retook Afghanistan.
Last week Pakistani army major general Babar Iftikhar told reporters that "Pakistan ISIS is not very active", in response to concerns that the threat from the group is rising.