Pakistani police say a vehicle bomb attack on a police truck has killed at least four policemen and two civilians in the southwestern city of Quetta. The blast was so intense that the truck was completely burnt and a auto and motorcycle also damaged.
He said that a forensic team will come to Quetta from Lahore, adding that the road will blocked until forensic samples are collected.
Security forces have cordoned off the area and kicked off a search operation in the surroundings.
It is second attack on police in Quetta within a week.
At least 40 people were killed in twin blasts in Quetta and northwestern town of Parachinar in June.
According to details, the suspects fled the scene after the incident however, security personnel have launched an investigation into the matter to arrest them.
"We can not yet say that this is a suicide attack, our teams are in research and investigations at scene", Cheema said.
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No group immediately claimed responsibility for Wednesday's attack. He also said that these cowardly attacks would not hinder the security forces in executing their duties.
Meanwhile, Prime Minister Shahid Khaqan Abbasi expressed grief on the attack and ordered the authorities to provide best medical treatment on emergency grounds.
The truck was carrying police recruits, four of whom were killed, along with two passers-by on the city's eastern outskirts.
Turkish Foreign Ministry condemned the terror attack in southwestern Pakistan's Balochistan province that left several policemen dead on Wednesday.
Balochistan Home Minister Sarfraz Bugti said the nature of the blast couldn't be ascertained, adding that security forces might be the target.
Balochistan has been rocked by violence on two fronts for over a decade.