Two Dead After Falling Through Ice on Lake Poinsett An ice fishing accident that happened on Saturday left two people dead according to Dakota News Now. Hamlin County Sheriff’s Office stated that the incident happened Saturday evening on the northern end of Lake Poinsett. A 60-year-old man along with an 8-year-old boy were on an ATV when it fell into the ice. Both the man and the boy were taken to Prairie Lakes Hospital in Watertown after they were pulled out from the lake. Sadly, both were pronounced dead at the hospital. Another incident involving a four-wheeler also broke through the ice on Lake Poinsett to which emergency personnel needed to be called to the scene.