11/06/2017 12:13 EST | Updated 11/08/2017 13:22 EST

City warns dog owners after 31 wildlife found dead at Toronto's Woodbine Beach

TORONTO — The City of Toronto is warning dog owners of a potential illness after more than 30 animals were found dead at Woodbine Beach over the weekend.

In a news release Monday, the city says it is investigating after Toronto Animal Services removed 30 ducks and one heron from an off-leash dog park area.

The city says it will be conducting tests to determine the animals' cause of death.

Dog owners are advised to keep their dogs leashed in Woodbine Park, including in the off-leash area, until the cause of death is determined.

They are also encouraged to contact their veterinarian for any dogs that are experiencing signs of illness after being in the park on Sunday.