A 3-year-old disappeared Tuesday night in easte Missouri, prompting a massive search that includes helicopters and infrared radar to scour a wooded neighborhood near his family’s home.

The St. Louis Post-Dispatch reported that Titus Greyson Tackett was last seen after midnight at his home in Irontown. The toddler was only wearing a diaper.

Police fear that the boy wandered off into the wooded area around Lake Killaey, which is 90 miles south of St. Louis.

The search was likely intensified due to the fact temperatures hovered around 14 degrees at 4 a.m.

The sheriff from Iron County told The Dispatch Wednesday moing that dogs from the state’s correction department were sent to the area and about 50 people have assembled to help with a ground search.