UPDATE: Shaylyn Ammerman's body was found on the evening of March 24. Details here: http://bit.ly/1XSu5O7
SPENCER, Ind. -- The FBI is assisting in the investigation of one-year-old Shaylyn Ammerman's disappearance.
Police launched a search Wednesday for the toddler after she was reported missing from her father's home in Spencer, Indiana.
The FBI is providing Investigative and analytical support to local authorities.
Can confirm three types of dogs involved in Shaylyn Ammerman search: Tracking/trailing, cadaver and wide-area search dogs all involved— Mike Pelton (@MikePeltonRTV6) March 24, 2016
Family also said Justin Ammerman submitted to a polygraph test Thursday.
Shaylyn's mother, Jessica Mae Stewart, posted an emotional plea on Facebook saying she woke up to "police pounding on my door" with the news of her daughter's disappearance.
Shaylyn was at her grandmother Tamera Morgan's house, where her father, Justin Ammerman, lives, at the time of her disappearance.
PHOTOS | The search for Shaylyn Ammerman
Morgan said she put Shaylyn to bed around 10:30 p.m. Tuesday in her crib in the living room.
"We went to bed, and we woke up and she was gone," Morgan said. "She cannot get out of her baby bed, and she cannot get out of the house."
LISTEN TO RTV6'S FULL INTERVIEW WITH JUSTIN AMMERMAN IN THE VIDEO PLAYER ABOVE
Morgan said at the time of Shaylyn's disappearance, the front door was unlocked.
"The front door was unlocked, because we just don't ever lock the door," she said. We don't have a reason to lock the door. I've lived in Spencer all my life and, you know, we just don't lock doors here."
Justin Ammerman said he's heard nothing from police about the search for his daughter.
"Really I feel like crap right now," he said. "This has never happened to me. This is my first child. I don't know who in their right mind would want to go and take a little girl."
Stewart begged whoever knows where her daughter is to return her safely.
"Please bring her home," she said. "She needs her mom."
Shaylyn was last seen wearing a white zip-up sleeper with owls on it. She also had a clip-on blue pacifier. She could have a Winnie the Pooh blanket with her.
Indiana State Police had three active search parties ongoing. They had also served search warrants on various houses and vehicles.
RELATED | Why no Amber Alert for Shaylyn Ammerman?
Anyone with information about Shaylyn's whereabouts is asked to contact Spencer police at 812-829-3932.
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