blast was caused by a suicide attacker who blew himself up in the procession.
Emergency has been declared in hospitals and hospital staff has been instructed to reach immediately.
A Deputy Superintendent of Police (DSP) has died in the blast.
The death toll in the suspected suicide bombing in Mastung has reached 25 fatalities while more than 50 people are injured, the district administration and police have both confirmed.
There have been no claims as yet but the Pakistani Taliban (TTP) denied their involvement in a statement.
The last major bombing in Mastung has been claimed by the Islamic State’s Pakistan chapter.
