As rescue and relief efforts continued on war-footing for the fourth day today in cloudburst-hit Leh region, the death toll climbed to 147. Nearly 500 people, including two French nationals, remained untraceable. Official sources said, sniffer dogs have been pressed into service to look for survivors. Rescuers waded through knee-deep mud to extricate trapped people.Jawans ploughed through the silt and boulders with earth movers, cranes and other machines. ITBP is helping plug the breaches to make National Highways between Srinagar-Kargil and Kargil-Leh functional. The ITBP and the Army have set up camps to look after hundreds of injured. The Jammu and Kashmir Government has re-started Short Message Service (SMS) in Leh, to help in relief and rescue operations in the region. The SMS was banned in the state few months ago due to security reasons. Meanwhile, a fresh cloudburst in Kargil area yesterday has cut off many villages. The IAF tried to airdrop essential items including tents and clothing in the villages affected by the cloudburst as roads were badly damaged.While, Jammu and Kashmir Chief Minister Omar Abdullah today visited Leh for the second time after the tragedy struck. He directed the Border Roads Organisation to clear the Manali-Leh highway within next three days. He asked the officials engaged in relief work to ensure that procedural formalities do not delay the operation.