Sri Lanka, May 18 -- Investigations have revealed that the derailment of a train travelling from Polgahawela to Kalutara near the Wanawasala Railway Station on Saturday was caused by a drug addict who had dismantled three iron levers used for switching tracks on the railway line.

The Peliyagoda Police, who arrested the 27-year-old suspect, a resident of Jambuwatta, Wanawasala discovered the two dismantled iron levers after he had sold them to a scrap metal yard in Wattala. It has been revealed that he dismantled the two iron levers during the early hours.

The Police also found the tools he used to remove the levers at his residence. The investigation further uncovered that by the time the train accident occurred in the morning, he had a...