Twenty-three horses poisoned with killer leaves

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An suspected attempt to kill 30 show horses at a well-known stable yard in San Diego, USA by poisoning with oleander leaves has left 3 horses in hospital and 20 more sick.

Bill and Debbie Tomin, owners of Rockridge Farm in Rancho Santa Fe, discovered highly toxic oleander leaves mixed in with sliced apples and carrots when they went to feed the horses at 6am on Thursday 30 July.