MINDEN, La. (AP) — A Louisiana man is accused of aggravated kidnapping after a 2-month-old boy was found abandoned under an interstate overpass, authorities said Tuesday.

Police said 25-year-old Kyshaun Wilson took the boy from a family he knew and that he had told authorities God told him to do it.

KSLA-TV reports police began searching for baby Elijah after he was discovered missing around 3:30 a.m. Monday. Police said Wilson apparently gave the boy a bottle because he was crying before leaving the child's house with him. Wilson is not a blood relative of the youngster, but is known to the family as the child's uncle, according to the infant's mother, Shameisha Thomas.

Minden Police Chief Steve Cropper said Wilson walked some distance before eventually hitching a ride to downtown Shreveport. According to authorities, investigators have determined that Wilson left the child beneath an Interstate 20 overpass at an exit near Shreveport about 3 a.m. Tuesday. After arriving in Shreveport, Wilson allegedly told a homeless man about the child, according to media reports.

The homeless man called Shreveport police, who later located Wilson and took him into custody on a charge of aggravated kidnapping.

It was not immediately clear if Wilson has an attorney.

Wilson initially denied knowledge of the missing infant but eventually provided information that helped police locate the baby, Cropper said.

The search was escalated amid concerns for the child's welfare.

"We were scared," Cropper said. But he added that the infant was found sleeping in a blanket on a ledge at the overpass by an officer around 7 a.m. Tuesday. "Scariest thing about it, if he were able to roll off that ledge, he would have hit that concrete retaining ledge and probably would have rolled right out into the interstate," Cropper added.

The child had only minor abrasions.

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Information from: KSLA-TV, http://ksla.com