GILGIT, April 17: At least three persons were injured when a bomb went off on Saturday night in a mosque in Naltar valley, 37 kilometres east of here. Police sources said that the condition of Irshad was serious, while Ashraf and Shah Alam received minor injuries. The injured could not be shifted to Gilgit hospital as the road between Nomal and Naltar is blocked for the last 20 days and no helicopter was available to airlift them.