The City of Moncton has put out a warning about the presence of blue-green algae at Centennial Park Pond.
A tweet from the city says the organism was detected along the banks of the pond.
“Therefore, the water is off limits to all recreation activities, and pets must not drink or swim here,” the tweet reads.
READ MORE: Toxic blue-green algae killed three N.B. dogs, health officials say
Blue-green algae are microscopic organisms that occur naturally in ponds, rivers and lakes. The algae can produce toxins that are harmful to humans and animals.
New Brunswick health officials have already confirmed that three dogs were killed by toxins found in blue-green algae after being in or near the Saint John River last month.
WATCH: Three dogs killed by blue-green algae in Fredericton
Two of the dogs came into contact with the toxin at Carleton Park in Fredericton, while the third dog was swimming in the river near Hartt Island campground about 10 kilometres away.