At least 14 paramilitary soldiers were killed when gunmen ambushed their vehicles in Baluchistan late Wednesday, officials said.
The incident took place in the town of Nawano in Turbat District, near the Iranian border.
The soldiers were going to their post after purchasing groceries from a nearby market, a local administration official said.
Travelling in two vehicles the soldiers were surrounded by insurgents who opened fire, killing all of them, he added.
Another official said the attack was so sudden that the soldiers did not have time to defend themselves.
He said the attackers were believed to be at least two dozen in number.
The attack was claimed by a spokesman for the Baluch Liberation Front, a militant group, in calls to television stations and newspapers.