In March 1990, Ashfaq Wani was killed in a battle with Indian security forces. In August 1990, Yasin Malik was captured in a wounded condition. He was imprisoned until May 1994. Hamid Sheikh was also captured in 1992 but released by the Border Security Force to counteract the pro-Pakistan guerrillas. By 1992, the majority of the JKLF militants were killed or captured and they were yielding ground to pro-Pakistan guerilla groups such as the Hizb-ul-Mujahideen, strongly promoted by the Pakistani military authorities. Further encroachment by pan-Islamist fighters infiltrating into the Valley from Pakistan changed the colour of the insurgency. Pakistan is said to have ceased its financial support to the JKLF because the JKLF did not support Kashmir's integration with Pakistan.