At least five people were killed and another 20 were wounded in a suicide bomb attack targetting a security forces vehicle in Pakistan's southwestern city of Quetta on Saturday.
Explosives experts said the attacker used a suicide vest containing about 10 kilograms of explosives with steel balls as shrapnel.
The entire Sariab road area was jolted by the powerful explosion.
Earlier this month, a senior police official was killed in a similar suicide attack on his vehicle in the provincial capital.
On Nov 19, Additional Inspector General (AIG) Telecommunications Hamid Shakeel Durrani and two other policemen were martyred in a suicide attack near Chaman Housing Scheme on Airport Road of the provincial capital Quetta.
Balochistan has been rocked by a series of attacks which raised concerns about a growing militant presence, including those affiliated with Islamic State, which has claimed several bombings in the restive province.
The attack happened when a security forces vehicle was passing by the blast site, the reports added.
Wasim Baig, spokesperson for Civil Hospital Quetta, confirmed with Xinhua that they have received four bodies and 19 injured people.
In June this year, 14 people, including seven policemen, were killed and 21 others were injured in a suicide auto bombing on Gulistan Road in Balochistan.
Mild and Sunny For Black Friday
Milder conditions are anticipated along with fair skies Friday night with lows in the mid-40s as our winds turn from the south. Expect some high, thin clouds tomorrow, but overall, lots of sunshine along with a light southwest breeze.