Colombo, May 11 (Reporter) Eight people were killed and over 30 others injured when a bus plunged off a cliff in Kotmale, located in Sri Lanka's Central Province, on Sunday morning, police said. Five of the deceased are men and the others are women, police said. The injured have been admitted to regional hospitals for treatment, police said. Police have launched an investigation into the cause of the accident. Road accidents are frequent in Sri Lanka, with official data showing that buses are often involved...////...