At least four including police personnel were killed while a dozen others injured in a blast some 300 metres from Balochistan Assembly, Quetta on Tuesday, Express News reported.
According to initial reports, the target of the blast was a police truck at Zarghon road. Police and rescue teams have reached the scene of the incident and cordoned off the area.
The injured have been shifted to Civil Hospital and Balochistan Medical Complex (BMC), while emergency has been declared in these medical facilities.
Eyewitnesses say firing was also heard in the area following the blast.
The incident comes as the provincial assembly was set to bring in a no-confidence m0tion against Chief Minister Sanaullah Zehri. Earlier today, Prime Minister Shahid Khaqan Abbasi called Zehri and advised him to step down.
This is a developing story and will be updated accordingly