An elderly couple have been found dead in their garden next to an electric lawnmower connected to the mains.
The bungalow in Cyncoed, Cardiff, where the couple were found
The couple, named locally as Albert and Beatrice Banks, seem to have been in the garden overnight when they were discovered in Cyncoed, Cardiff.
Police said they were not treating the deaths as suspicious, and could not confirm reports they were electrocuted.
The ambulance service originally said they seemed to have been electrocuted, but it later withdrew that statement.
In the later statement, a Welsh Ambulance Service spokesman said it had been called to the bungalow in Bettws-y-Coed Road shortly before 1100 BST on Tuesday.
"We attended within six minutes to find that the couple, both aged 87, lying on the lawn," said the ambulance service.
"The male had been mowing the lawn with an electric mower and the cable was still live when our crew arrived on the scene.
"They were found by their son this morning but they appear to have been in the garden overnight."
South Wales Police said the couple had been married for 66 years.
Neighbour Peter Collier, 75, said: "I think they'd lived here for over 20 years. I knew them to say hello to.
"I know that Mrs Banks had some heart trouble. I used to see Mr Banks quite frequently when he was walking his dog."
"They were very kind and very helpful. I'm shocked by the news to hear they had both gone."
The couple had lived in the street for over 20 years
Mr Collier added that before he retired Mr Banks had run a market stall in Cardiff market selling vacuum cleaner accessories.
Another neighbour Roger Davies, 64, said: "The first I knew about it was when I came home at 11am and saw an ambulance and large police van outside."
Det Sgt Julian Barwood said the couple's son, who lives in Newport, had gone to the house on Tuesday morning after being unable to contact his parents by telephone on Monday evening.
He said the post-mortem examination was due to take place on Wednesday.