Railway Minister Ashwini Vaishnaw said the "root cause" of the accident and the "criminals" responsible for it have been identified. "It happened due to a change made in the electronic interlocking and point machine," he told reporters at the site of the accident in Balasore district. 📰 Odisha Train Tragedy: Driver Error Ruled Out, Possible Sabotage Being Probed; Railway Minister Ashwini Vaishnaw Says People Behind ‘Criminal’ Act Identified.