Cadres of agitating Samyukta Loktantrik Madhesi Morcha (SLMM) vandalized an ambulance carrying a serious patient at Duhabi of Sunsari on Saturday. Driver Ananda BK has sustained a head injury inflicted by the attack. The ambulance Ko 1 Cha 4615 was on the way to BP Koirala Institute of Health Sciences after being referred to the institute by the Biratnagar City hospital. Morcha cadres had pelted stones at the ambulance. Morcha cadres had vandalized an ambulance transporting child patient on Friday.