One man and one boy have died after falling through the ice on Lake Ponisett. According to the Hamlin County Sheriff's office the incident occurred Saturday evening on the northern end of the lake. The 60-year-old man and 8-year-old boy were on an ATV when the vehicle broke through the ice. First responders did their best to rescue the duo and were able to pull the bodies from the water. The two victims were eventually pronounced dead at a local hospital. South Dakota Game Fish and Parks urges residents to check with them or your local county sheriff's office about ice thickness before going out.