At least 15 passengers were seriously injured after a Telangana RTC bus met with an accident in Medak district on Tuesday. The bus, travelling from Hyderabad to Bodhan, reportedly crashed on the national highway at Kolcharam while attempting to overtake a grain-laden lorry. Three of the injured are said to be in critical condition. All the injured passengers were shifted to the Medak Government Hospital for treatment. Police have registered a case and are investigating the circumstances leading to the accident