JOWAI: Four people were critically injured and shifted to Jowai District Hospital, Ialong by 108 Ambulance after two trucks collided and fell into a gorge in Jowai on Monday evening. According to Jowai Traffic Police, one truck driven by Yespalsingh (58 yrs) of Rajapara, Punjab along with his son Manor Singh (18 yrs) while coming from Mizoram and proceeding towards Guwahati dashed against another truck driven by Ajay Basumatary (32) of Tilakgaon Assam along with his helper, Sukra Sanjay Boro (22) of Jagi road Assam, from the opposite direction on reaching Jowai Bypass.