In September 2014 a kayaker was practicing in Bedok Reservoir when his boat capsized and he fell into the water. While swimming to a pontoon, he felt fish biting his feet and when out of the water, he saw huge injuries and cuts on his legs. Biologists claimed that the cuts could be caused by attacks from aggressive turtles or fish in the reservoir. From September to December 2014 more attacks were reported and as a result, sporting and recreational activities were suspended at Bedok Reservoir. Meanwhile, several varieties of predatory fish like African walking catfish, peacock bass, tarpon and armored sucker catfish have been caught in the reservoir. In simple terms, there are invasive fish species. The government has issued advisories to those entering the waters. Severe fines and penalties have been imposed for those releasing fish here.