Terrorists treated the holy month as a convenient time to attack Pakistani civilians and security personnel, Islamic scholars said.
If true, the shelling would represent the first such attack on a Central Asian state by the Afghan-based group.
Law enforcement agencies have upgraded security and increased patrols around sensitive places during the Muslim holy month to preempt any terror attacks.
Little is known about the new leader, Abu Hasan al-Hashemi al-Qurashi, who takes the reins of a group that is a shadow of its former self.
At least 60 people -- including seven children aged below 10 -- died in the barbaric suicide bombing, and locals came out in force in the streets in outrage against the militant group.
The al-Qaeda-linked extremist alliance was caught off guard by last week's US and Kurdish raid on top ISIS leader in an area it claims to control.
Separatists who take refuge in Iran are capitalising on Balochistan residents' resentment of Chinese economic exploitation.
Iran's memorialisation of Qassem Soleimani is 'a part of Tehran's efforts to portray a terrorist as a hero of the Muslim world', said one observer.
Counterterrorism police said they had stormed a hideout in Quetta and killed six militants, but 'around four to five managed to escape'.
Law enforcement agencies say they have dismantled multiple ISIS-K groups in Khyber Pakhtunkhwa in recent months.