evidence: There was still confusion about the exact sequence of events leading to the worst rail disaster in decades in Odisha state’s Balasore district on Friday. Jaya Verma Sinha, a senior railway official, said on Sunday the preliminary investigation revealed a signal was given to the high-speed Coromandel Express to run on the main track but it later changed, and the train instead entered an adjacent loop line where it rammed a freight train loaded with iron ore. The collision flipped Coromandel Express’s coaches onto another track, causing the incoming Yesvantpur-Howrah Superfast Express from the opposite side to slam into the wreckage and also derail, she said.