A woman was the sole survivor of a car crash which killed her husband, mother, and two teenage foster sons, police have confirmed.
Denise Griffith, 55, was at the wheel of the Peugeot 807 when it plunged into a reservoir in mid Wales during a family Easter holiday. Mrs Griffith escaped with minor injuries to raise the alarm, but the other passengers could not be saved.
The four family members were named by Dyfed Powys Police after what was described by community leaders as "a great, great tragedy".
Emyr Glyn Griffith, 66, Phyllis Iris Hooper, 84, Peter Briscome, and Liam Govier, both 14, all died in the smash at Bwlch y Gle Dam, Clywedog, Llanidloes, on the B4518.
The family, from Pontypridd, near Cardiff, had been holidaying together in the Machynlleth area. The Peugeot careered off a road after apparently being "clipped" by another car.
23-year-old man, arrested on suspicion of causing death by dangerous driving, has since been released on police bail. The man, from the Llanidloes area, was driving a Ford Mondeo which has been seized by police for examination.
Neighbours of the family reacted with shock as the names of all four victims of the crash were released.
John Davies, a neighbour in Barry Road, Pontypridd, where the family lived, said he could hardly take in the news. "This is so tragic," he said. "They were such a nice family. People who would do anything for you. Denise was a foster mother and a lovely woman.
"Her brother Lloyd (Hooper) lives in the same street and was on holiday himself with his wife and three children when this happened.
"He had rented a caravan for a week in Kidwelly and had to leave it to go up to mid Wales yesterday. I spoke with him briefly in case he had not already heard, but he had. He was understandably very upset. Obviously he had just lost his mother, brother-in-law and the two boys."