The prisoners were being transported in Black Maria from the Kalutara Prison to the Kaduwela Courts, when an unidentified gang attacked the bus.
Kalutara Chief Magistrate Bharathi Wijeratne yesterday called for a report on telephone conversations that took place between individuals inside the prison and those outside on the day the Black Maria carrying inmates from the Kalutara Prison was ambushed and ordered the telecommunications companies to furnish the required details to court.
Further Magisterial Inquiry was postponed for 16th March 2017.