Braylen Noble, who cannot speak, went missing on Friday from an apartment on the third floor of an apartment block and his mom fears he fell out of the window.
Police and fire and rescue crews, who have been searching the area around the toddlers home at Hunter's Ridge Apartments in western Toledo — but have found no sign of the boy.
The search has included the neighboring Swan Creek, a nearby swimming pool and everywhere in between.
Sterling Rahe, a Toledo Fire and Rescue Department spokesman, said: "We've searched probably a quarter mile in each area from this area, maybe even beyond that, with nothing found.
"It's been searched multiple times. All of the adjacent buildings have been searched."
With no trace of the boy found, the FBI is now involved.
Noble was said to be non-verbal which makes locating the young boy difficult because he cannot reply to searchers' callers.
He was last seen wearing a red and white Mickey Mouse long-sleeved shirt.
Lt. Kellie Lenhardt said: "We're confident in the training we have there, but it is a different aspect of the search.
He added: "False social media rumors, we cannot say it enough, please verify the information you are reading before you share it and cause more concern among people."
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