The Pakistani Taliban said it carried out the attack, the second time this month it has claimed a deadly assault on security forces.
The Frontier Constabulary officers were attacked while patrolling a railway line in the
provincial capital Quetta.
The victims had no chance to retaliate, said Abdul Razzaq Cheema, a senior police official, adding that they recovered 108 Kalashnikov bullet cases from the site.
“We suspect the attackers were at least four people who came on two motorbikes,” he said.
A senior official of the paramilitary force confirmed the attack and toll.
On February 3, a suicide bomber killed 11 soldiers in an attack on an army camp in the Swat Valley in the northwest, with the Pakistani Taliban claiming
responsibility.
For more than a decade police and troops have been battling Islamist militants and separatist groups in mineral-rich Baluchistan, which borders Iran and Afghanistan.
Baluchistan is the largest of the country’s four provinces but its roughly seven million people have long argued they do not get a fair share of its vast gas and mineral wealth.