Police are investigating whether a woman, aged 71, found dead at a house in south London was mauled by her daughter's dogs.
Officers called to Rutland Drive, Morden, at 18:25 GMT on Tuesday found the woman, named locally as Gloria Knowles, with multiple injuries.
Five dogs, including two Bordeaux French mastiffs, were seized and police cordoned off two adjoining houses.
Neighbour Kevin Hamilton said he had heard screams at about 18:15 GMT.
He said he was "absolutely devastated" he had not been able to help his neighbour of 20 years.
Mr Hamilton said the animals, believed by the police to include one black/blue blood American bulldog, an American bulldog and a small mongrel, were "lovely dogs".
The 65-year-old said Mrs Knowles had been feeding the dogs in the back garden when he had heard screams and dogs barking.
"It wasn't a cry for help or anything and I put it down to children being boisterous," he said.
"It wasn't a vicious sounding bark. I didn't recognise it as such."
He added the screams he heard "may well have been the dogs attacking her".
A Metropolitan Police spokeswoman said no arrests had been made.
"She [Mrs Knowles] had sustained a number of injuries. An investigation is under way to establish a cause of death," the spokeswoman added.
A post-mortem examination is due to take place at St Georges Hospital Mortuary on Thursday, police said.