(Updated at 11 a.m. with more detail from Rice County Sheriff Troy Dunn)
Police and rescue personnel found a missing Northfield man walking in a field south of Hwy. 19 near Benton Avenue in Webster Township at about 4:30 p.m. Monday, police say.
Medical staff started evaluating the 27-year-old man at Northfield Hospital less than 45 minutes later, according to Rice County Sheriff Troy Dunn.
"We're at the hospital right now with him," he said. "He's obviously very cold, but they're still checking him over."
Dunn said he would not release the man's name or any additional information, as the situation could relate to mental health or criminal issues.
It will be up the the Rice County Attorney's Office to review the case and decide whether or not to file a criminal complaint against the man, a process that could take two to four weeks, Dunn said Tuesday morning.
"If they do charge him, that will be made public," Dunn said. "I don't have a feeling one way or another. Bottom line, he's safe, [his] family is safe and I appreciate the work of the deputies and firefighters that came in to assist on the search yesterday."
The man was being held by hospital staff for evaluation Tuesday morning.
At about 3 p.m. Monday, police started combing the area surrounding Union Lake in Northfield for the man who was last seen Sunday night.
Dunn confirmed that his department, with the help of the Lonsdale Fire Department, Northfield Fire Department and the Minnesota State Patrol were searching for a man who left his home on Bagley Avenue at 7:30 p.m. Sunday.
Someone spoke to the man on the phone at about 7:30 a.m. Monday, Dunn said.
Battling cold temperatures and windy conditions, about 15 rescue personnel fanned out on ATVs, snowmobiles and the state patrol helicopter in search of the man on Monday.
Dunn described the Northfield man as a white male, who is 6-foot-1-inch, 170 pounds and last seen wearing blue jeans and an orange jacket.
"Because of the cold weather and the time, we want as many rescue personnel out searching for this missing person as we can get," Dunn said.
Reach reporter Kaitlyn Walsh at 645-1117, and follow her on Twitter.com @NFNKaitlyn.