A medical official said that fifteen additional people were hurt in the attack in the Balochistan province of southwest Pakistan.
According to police and hospital reports, a bomb attack on a police van in the Pakistani city of Quetta resulted in at least four fatalities.
Waseem Baig, a spokesman for the civil hospital, confirmed to Al Jazeera on Monday that there had been four fatalities and 15 injuries at the facility thus far.
At the Qandhari Bazar neighborhood of the city, a police vehicle was attacked. A girl and another citizen also perished, and there are two police officers among the deceased, according to Baig.
It was not obvious whether the attack was planned or a suicide, according to Mitha Khan, a different police officer stationed at the hospital.
“A senior police officer who was traveling to one of the police stations was in the car that was attacked. According to Khan, the gunman and his driver died in the incident, but the senior official escaped unscathed.
The vehicle of the Acting Superintendent of Police Investigation, which was parked in Kandahari Bazaar, was the target, according to senior police officer Shafqat Cheema.
According to SSP operations Zohaib Mohsin Baloch, the initial inquiry revealed that 4 to 5 kg (9 to 11 pounds) of explosives were utilized in the motorcycle, which was remotely detonated.
No armed organization or person has so far taken responsibility for the attack.