MICHIGAN CITY | A boy who was injured Friday after being dragged 11 feet down a sand hole remained in critical condition late Sunday, a hospital spokeswoman said.
Nathan Woessner, 6, of Sterling, Ill., is being treated at the University of Chicago Medicine Comer Children's Hospital, said Loma Wong, a spokeswoman for The University of Chicago Medicine and Biological Sciences.
The sand hole occurred Friday on the north slope of a dune at Mount Baldy in the Indiana Dunes National Lakeshore, officials said.
Nathan was dragged 11 feet beneath the surface of the dune after it collapsed for unknown reasons, said Bruce Rowe, public information officer for the National Lakeshore.
Rowe said Sunday afternoon officials were still investigating what caused the collapse. Park officials will decide Monday morning whether Mount Baldy will reopen to the public.
"At this point, we don't have answers yet," he said.
Wong said Sunday doctors reported Nathan was able to follow commands, though he was still in critical condition. On Saturday, Wong said Nathan was responding well to mechanical ventilation.
Michigan City Fire Chief Ralph Martin previously said Nathan showed signs of life when rescuers pulled him from the sand.