At least 36 people have been killed and many others injured after a train derailed in the Indian state of Andhra Pradesh, officials say.
Nine coaches and the engine left the tracks near Kuneru station in Vizianagaram district, the head of East Coast Railway, JP Mishra, said.
Many people are still trapped in the wreckage and rescuers warn that the death toll could rise.
Hospitals in India were struggling on May 28 to cope with an influx of victims of a blistering heat wave that has claimed nearly 1,500 lives in just over a week.
Hundreds of people - mainly from the poorest sections of society - die at the height of summer every year in India, but this year's figures are unusually high.
A passenger train rammed into a school bus in southern India on Thursday killing at least 11 children, with fears the death toll could rise further, officials said.
A senior police officer said "11 students and the bus driver were killed", while a railway official said he feared as many as 25 children were dead after the collision in Telangana state.