New York City Fire Commissioner Salvatore Joseph Cassano has said if the New York commuter train had derailed on a workday and was at full occupancy, the result would have a been "tremendous disaster".
New York State's Metropolitan Transportation Authority said the train was about half full, with approximately 150 passengers on board at the time of the crash.
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A man and a woman have been charged with murder after a badly burned body was found in the back garden of a house in south-west London.
After a chilly start, there will be some warm sunshine across southern and eastern parts.
Labour is ready for another election after June's vote "changed politics in this country", Jeremy Corbyn has declared.