Pakistan security officials say a bomb blast has killed two Pakistani soldiers in the country's northwest near the Afghan border.

The remote-controlled bomb ripped through a vehicle in a military convoy Saturday on the outskirts of Miran Shah, the main town in the North Waziristan tribal region.

No one claimed responsibility for the attack, but the area is a stronghold of Taliban and al-Qaida-linked militants.

On Friday, a car bomb killed at least 13 people in the country's southwestern province of Baluchistan.

Police say the device went off outside a house in the provincial capital, Quetta. The house was used by the family of former provincial minister Naseer Mengal.

There was no immediate word as to whether Mengal or any members of his family were among the victims. There was also no immediate claim of responsibility.

Baluchistan has been in the grip of a regional insurgency for years as separatist militants fight for more autonomy and greater control over natural resources.

The province bordering Iran and Afghanistan also is home to pro-Taliban militants.