Landi Kotal — Following offence by unknown militants of forces cantonment, the security agencies carried out door to door search operation in Ashraf Khel village of Tehsil Landi Kotal on wee hours of Thursday.

The forces official told that on the middle night of Wednesday and Thursday undisclosed hurled two grenades in the cantonment however no causality occurred as the device landed in the deserted area.

Immediately after the incident, the forces launched a massive search operation in Ashraf Khel and arrested five locals persons and shifted them to the cantonment for investigation, the official added.