LANDI KOTAL, July 13: Unidentified militants blew up a bridge in Bara tehsil of Khyber tribal region on the night between Tuesday and Wednesday, officials said.

They said that militants planted huge quantity of explosives at a link bridge in Sheen Dand area of Bara. The explosives went off at midnight and destroyed the bridge, they added.

In another incident, a mentally retarded person killed at least three persons, including a woman, and injured four others in Tirah valley of the tribal region on Wednesday.

Sources said that a mentally retarded person entered a house in Tirah and opened indiscriminate firing on the inmates. Three persons were killed and four other received injuries in the incident, they said.—Correspondent