At least 21 people have been killed and dozens more hurt after a train derailed in eastern Iran, state media report.
The train, which was carrying 348 passengers, came off the line between the cities of Mashhad and Yazd about 50km (31 miles) from Tabas.
The deputy head of Iran's railways said the accident happened when the train hit an excavator near the track.
Emergency services warned the death toll could rise because many of the injured were in a critical condition.
Five of the train's 11 carriages were knocked off the line, Mehdi Valipour of the Iranian Red Crescent told state TV.
Pictures posted online by local media showed several carriages on their side, as well as a yellow excavator on its side beside the track.
