THARPARKAR- The death toll in the drought-hit Tharparkar district of Sindh has risen to 140 as three more children died today. Two male children in Mithi Civil hospital and one female infant at Islamkot hospital died during treatment, sources said. Rahila born four days ago passed away in Islamkot due to lack of medical facilities said family of the infant. Six months old Ramchand died while reaching the Mithi hospital. Two month old Asif also expired on his way to the hospital. Mithi Hospital still remains over crowded with several patients lying unattended on one bed. Meanwhile, the relief work by several political and social organizations continues in different drought-hit areas. However, relief work in the remote areas remains a challenge.