Authorities in Iowa searched Tuesday for Xavior Harrelson, an 11-year boy who disappeared last Thursday.
"As we receive information, we are exhausting those investigative leads," Mitch Mortvedt, the assistant director of the Iowa Division of Criminal Investigations, told NBC affiliate KWWL of Waterloo.
"We are also expanding our search perimeter in and around the Montezuma area," he said.
Harrelson was last seen at about 11 a.m. CT on Thursday wearing blue pajama bottoms, a red T-shirt and black tennis shoes in Montezuma, about 60 miles east of Des Moines, according to the Poweshiek County Sheriff's Office.
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