Jaipur, Oct 13 (ANI): At least 22 school children were injured when a bus carrying them turned turtle in Jaipur, said a senior police officer. The accident happened when the bus carrying 57 children for a picnic on the outskirts of city of Jaipur tumbled. No causalities have been reported till now but condition of three children is critical. Deputy Superintendent of Police, Karan Singh, said the cause of accident was under investigation. The children were admitted to nearby hospital. The children belonged to Maharshi Gautam Vidyapeeth school.