The organisers of the Crufts international dog show have denied rumours that other dogs have been poisoned at the event.
A three-year-old Irish setter called Jagger died after competing Crufts amid fears he may have been poisoned.
One of the owners of the prize-winning dog said they have lost "our love, family member and best friend to our son".
The co-owner of a prize-winning dog which died after allegedly being poisoned at Crufts said she believes Jagger was the victim of a random attack.
Dee Milligan-Bott told BBC Radio 5 Live she was certain that the Irish setter, which died at the weekend after returning to Belgium, was poisoned.
But the distraught breeder said: "I don't believe in my heart of hearts that this was another competitor or anyone involved in the dog world.
"I can only imagine that it was a random act that somebody premeditated and wanted to cause total distress at the best dog show in the world."
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