Authorities say a roadside bomb targeting paramilitary troops has killed two civilians in southwestern Pakistan.

Tuesday's blast in Quetta, the capital of Baluchistan province, took place as a Frontier Corps traveled on Saryab Road. At least 12 people were wounded in the attack.

No one has claimed responsibility for the bombing.

Baluchistan is home to various militant groups, including pro-Taliban factions. Baluch separatists are also fighting a low-level insurgency in hopes of gaining political autonomy and a greater share of the profits from the region's natural resources.