Jammu: Four more seriously injured persons succumbed to injuries on Monday, taking the death toll in the accident involving rolling down of an overloaded minibus in Kishtwar district to 35. Official sources told INS said that the minibus (JK17-6787) on way to Kishtwar from Keshwan overturned and fell into a deep gorge near Thatri, resulting in the on the spot death of the 28 people and injuries to 21 other persons. People and police rushed to evacuate the injured soon after getting information about the accident. Three seriously injured persons succumbed to injuries before being admitted to hospital while four others died later, they said. Nine of the seriously injured persons have been airlifted to GMC Jammu for advanced treatment, they said.