Nathan Woessner remains in critical condition
Nathan Woessner, the 6-year-old rescued from a sand sinkhole at the Indiana Dunes, remains in critical but stable condition.
Doctors day they're concerned about his lungs, but hope to take out his breathing tube by the end of the week.
Mount Baldy remains closed indefinitely.
The National Park Service plans to bring in sonar equipment to check for any more sinkholes in the area.