Tests are being carried out in the New Forest after eight dogs died after being taken for walks at a popular beauty spot.
Vets say the animals got a cut on their paw and think a mystery toxin in the ground could have infected the wound.
The council says it's looking into the claims and people should stay away from Latchmore Brook near Fordingbridge if they're worried.
Martin Dowse speaks to Roger Stobbs, of Forest Veterinary Clinic, and dog owner Pauline Chalk.
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Rain will arrive through the early hours for a wet start to Monday. It will eventually brighten up by the afternoon.
Rain on the way tonight, then a wet start to Monday, but it will brighten up through the day with sunny spells for the afternoon.
One of nine dogs dumped on the streets of Winchester, unable to see or stand properly, is fighting for its life.