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BBC News
BBC News
Train passengers were left "distressed" and "confused" when the driver of a packed train encouraged them to get off at a station for some fresh air – only to leave without them.
Trevor Greenfield, 74, and his wife, Eileen, 68, were among the group of eight passengers stranded at Swindon, having boarded the train from London Paddington to Carmarthen.
"People were distressed, confused and flabbergasted," said Mr Greenfield, from Barry in Vale of Glamorgan. "It's worrying and disappointing that the driver made no announcement that the train was leaving."
Great Western Railways apologised for the inconvenience caused.
Mr and Mrs Greenfield boarded the train from London to south Wales on 10 April, but found it packed with passengers because two earlier trains had been cancelled.
They had to stand with 10 others in hot and cramped conditions for about an hour until the train stopped at Swindon and was delayed for about 15 minutes.
Mr Greenfield said the driver announced he would arrange for the train guard to open the door so they could get off and get some fresh air during the wait.
He said a group of eight people got off and stood about a metre from the train, waiting to be told when to get back on.
But at about 17:30 BST, with no announcement made, the doors of the train closed and it started moving.
"As a group, we were horrified and in shock that it was pulling away. People started shouting and waving in panic to the guard who was some distance away," Mr Greenfield said.
The couple had also left their suitcase – containing clothes, medication and valuables for a four-day break in London – on the train.
They were eventually able to get a train from Swindon to Cardiff, where their daughter drove from Barry to pick them up, and they were reunited with their luggage.
Mr Greenfield has lodged a formal complaint with GWR, describing it as a "long, stressful and worrying day".