Unknown men had planted an explosive device on a roadside in Shamalzai area adjacent to Pak-Afghan border.

The bomb exploded when two Pakistani persons who were local dwellers walked through the area,a police official told APP that as a result of the blast, these two persons got injuries.

The injured identified as Allahdad and Abdullah were shifted to hospital where doctors confirmed their death.

Law enforcement agency and police immediately reached the affected site and cordoned-off the area.

LEA teams have also launched search operation to trace out and arrest the suspects.