According to initial reports, the driver of the oil tanker lost control and crashed into cars on the road near Mangochar area of Kalat district.
The injured were taken to a nearby hospital for medical treatment.
Road accidents and related fatalities are a common occurrence in Balochistan due to over speeding and dilapidated roads.
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Four children killed in gas cylinder blast
Separately, at least four children were killed as a result of a gas cylinder blast in a house in Touk area of Kalat district.
Further, in another incident, two people died on the spot when a passenger pick up hit a roadside remote controlled bomb in Pehlawo area of Dera Bugti district. Bodies of the deceased were shifted to a local hospital and police are investigating into the matter.
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