On Friday, the Guards said they "targeted and killed the perpetrators" behind an attack that left two of their members dead on December 25 in the same province.
Sistan-Baluchistan lies on the border with Pakistan and Afghanistan and is a flashpoint of clashes with smuggling gangs as well as separatists from the Baluchi minority or extremist militant groups.
On 18 November, three policemen, including a colonel, were killed and six wounded in fighting with an armed group in an area bordering Sistan-Baluchistan.
