According to security sources, unidentified terrorists had planted a remote-controlled improvised explosive device (IED) in a bicycle near Sher Jan bus stop outside a medical store near Eastern Bypass area of the Balochistan's capital.
They said that the unidentified terrorists targeted the common people to sabotage the law and order of the city.
Bodies and the injured have been shifted to nearby hospitals.
Earlier in May, three people, including a prayer leader, were martyred and several other sustained injuries after an explosion hit the mosque in Quetta's Rahmaniya Mosque during the Friday sermon.
Balochistan has been wrecked by ethnic, sectarian, militant and separatist violence fed by a potpourri of groups.
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