BURNSVILLE, Minn. (AP) — Officials in Minnesota said they're finding more giant goldfish in waterways, prompting a plea to citizens to stop illegally dumping their unwanted fish into ponds and lakes.

The goldfish, which can grow to the size of a football, compete with native species for food and increase algae in lakes. Officials in the Twin Cities suburb of Burnsville found 10 fish in Keller Lake earlier this month while doing a water quality survey.

On Monday, 18 additional fish were found. Some were 18 inches (46 centimeters) long and weighed about 4 pounds (1.8 kilograms).

"Please don't re...