PORT PERRY, Ont. - Police say at least three dogs have been sickened by tainted cupcakes left on the ground in a park in Port Perry, Ont., north of Oshawa.

Durham Region police were called to Poplar Park at about 11:30 p.m. Monday after three dog owners had taken their dogs to an animal clinic. The dogs had ingested some cupcakes left near a tree and became sick.

Police say a veterinarian believes the animals ingested a poison like anti-freeze such as windshield wiper fluid.

Officers searched the park and others in the area, but found no other poisonous material.

All three dogs are in stable condition.

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