A man who died after the train he was travelling on collided with another train in mid Wales has been named locally as Tudor Evans.
He was in his 60s and from the Aberystwyth area of Ceredigion.
Four other people were seriously injured in the crash near Llanbrynmair, Powys, on Monday evening, and a further 11 required hospital treatment, according to the Rail Accident Investigations Branch (RAIB).
British Transport Police said it did not currently believe his death was as a result of injuries sustained in the crash.
Mr Evans had been travelling on the 18:31 westbound service from Shrewsbury to Aberystwyth on Monday evening when it hit a stationary train heading from Machynlleth to Shrewsbury.
On initial inspection, the RAIB found that the train may have entered into wheel slide when braking.
It said initial evidence suggested the collision occurred at a speed of approximately 24km/h (15mph).
Transport for Wales (TfW) chief operating officer Jan Chaudhry van der Velde said a full report would take several months to be processed.
Politicians sent their thoughts to train crash victims during prime minister’s questions on Wednesday.
Speaking in the House of Commons, Deputy Prime Minister Angela Rayner sent her “condolences to those affected by the train crash in Powys”.
Deputy leader of the opposition Oliver Dowden echoed her comments about the crash.
This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version.
You can receive Breaking News on a smartphone or tablet via the BBC News App. You can also follow @BBCBreaking on Twitter, external to get the latest alerts.
