A woman appears to have been mauled to death after she reportedly went to feed pet dogs belonging to her daughter.
"She had sustained a number of injuries. An investigation is under way to establish a cause of death," a Scotland Yard spokeswoman said.
A post-mortem examination will be carried out on Thursday.
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Prince Harry is in Toronto, the host city of the Invictus Games, ahead of Saturday night's opening ceremony.
The Prime Minister said she expected an implementation period of "around two years" as she called for a "creative" approach to talks.
The first signs of autumn are appearing as the equinox marks the start of the season.