KANSAS CITY, Mo. -- The Jackson County Sheriff's Office is searching for a missing 9-year-old boy from Sibley, Missouri Monday morning. According to deputies, Liam Smith was last seen in the area of North Buckner Tarsney Road and Santa Fe Street -- less than a half-mile east of downtown Sibley -- at about 6:45 a.m. Monday. He is described as a 9-year-old white boy with brown hair and blue eyes. At the time of his disappearance, he was wearing a gray tank top, black or gray shorts, and blue/white Converse shoes. 18-year-old dies, three teens injured in Johnson County, Missouri crash Deputies said Smith may be developmentally/intellectually disabled and has run away in the past. He was previously found wading in the Missouri River, near Homer's Landing at 32301 East Atherton Sibley Road. If anyone has any information regarding Liam Smith's whereabouts, law enforcement asks that you contact the Jackson County Sheriff's Office at (816) 541-8017. This is a developing story. Stay tuned at FOX4 News for the latest updates and information.