Serangan itu, yang terjadi di provinsi wilayah tenggara, Sistan-Baluchestan, dilancarkan di tengah meningkatnya kekerasan di sebuah kawasan dimana pihak berwenang Iran menyalahkan AS dan ketidakmampuan Pakistan mengawasi perbatasannya.
The clash in the southeastern province of Sistan-Baluchestan follows an upsurge of violence in the area which the authorities blame on plots by archfoe the United States and Pakistan's inability to control its border.