Quoting Indian Army sources, the weekly, in its latest issue said several UAV signatures had been detected by radar along the LoC in Tangdhar, Palanwla, Sunderbani, Gurez and Kel sectors since May when the snow-bound Pir Panjal mountain passes became negotiable from Pakistan-occupied Kashmir. They estimate that 1,500 to 2,000 armed insurgents, mainly Pakistanis and Afghans from Harkat-ul-Mujahideen, Al-Badr and Lashkar-e-Toiba militant groups, were waiting in Kotli, Muzzafarabad and Minimarg to cross over into Kashmir. The report said Pakistan effectively utilised its UAVs before occupying strategic mountain heights over 4,270-metre-long LoC in Kashmir`s mountainous Kargil region last summer According to the report, India said it was unable to spot the Pakistani incursions as its Israeli aircraft searcher UAVs were unable to fly higher than 11,000 ft. The government was asked to give priority to acquiring high-altitude UAVs, but the proposal has yet to be approved by the defence ministry. (PTI)