His grandmother had reportedly gone inside the home while Casey and two other children played outside.
Casey was found just before 9:30 p.m. Thursday.
Casey spent Thursday night being examined by doctors at CarolinaEast Medical Center, and hospital staff said Friday that he was "in good condition and will be released later today or tomorrow", according to TV station WBTW.
"A relative in the home searched for Casey and when they were unable to find him, called 911", Lynch continued.
The sheriff's office is getting help from the State Bureau of Investigation, the Federal Bureau of Investigation, Naval Criminal Investigative Service, North Carolina Highway Patrol and other county, state and federal agencies.
Hughes said authorities are treating Casey's disappearance as a missing child case but ask the community to report anything "remotely suspicious". He was located by professional search and rescue crews off Toler and Aurora Roads.
The family of a 3-year-old boy from North Carolina claimed that he was protected by a bear while missing for three days.
FAA: Increase in "sick leave" causing flight delays, including Newark
Flights were delayed to several other major airports across the U.S. , including the Newark Liberty International Airport. Baltimore/Washington International Thurgood Marshall Airport had the second-longest wait time, of 19 minutes.
Temperatures dropped to the freezing low 30s in North Carolina Wednesday evening and Sheriff Hughs said the child wasn't adequately dressed for the weather. The search was interrupted Thursday by heavy rains and wind, and volunteers were told to stop searching because of safety concerns. "But I can tell you we are certainly doing our due diligence, spending a lot of time with them and just sorting through all the different stories".
He was cold, authorities said, but alive and responsive.
The FBI and U.S. Marine Corps from nearby bases at Camp Lejeune and Cherry Point joined the search effort on Wednesday, Craven County Sheriff Chip Hughs announced the second day of the search.
The young boy's family said he appeared in good spirits and was already asking to watch television.
"The terrain was woods".
But when he was found, the sheriff's office said he was in good health.
"At no time did we see any indications of an abduction", he said, which is why an Amber Alert wasn't issued.