Ayla Reynolds disappeared from her father's home in Waterville, Maine late Friday, Dec. 16. Her father, Justin DiPietro, spoke out in a statement Tuesday for the first time since the 20-month-old's disappearance.

Authorities have searched through trash bins, drained a stream and investigated more than 100 leads in an effort to find the missing 20-month old girl.  Waterville police and FBI agents are searching diligently for the missing toddle, but have found no major leads in the case so far.

20-month old Ayla was last seen at 8 p.m. when her father put her to sleep in green, polka-dot pajamas with a top that read Daddy's Little Princess. The next morning Ayla was nowhere to be found and her father reported her missing at approximately 8:50 a.m. The toddler has not been seen since Friday night.

All I know is that he was the last one to see my daughter and all I want to know is where she is, Ayla's mother, Trista Reynolds, told ABC News about her daughter's father.

Ayla's father, Justin DiPietro, gave his first public statement Tuesday reports the Associated Press.

I have no idea what happened to Ayla, or who is responsible, he told the AP. I will not make accusations or insinuations towards anyone until the police have been able to prove who's responsible for this.

He also said that his family and friends will do everything we can to assist in this investigation and get Ayla back home.

Waterville Police Chief Joseph Massey will not speculate on whether Ayla is alive, but claims that authorities are focused on finding the missing girl.

We've ruled out nothing, said Massey, reports the AP. He also said that both of Ayla's parents have been cooperating with police.

Ayla's mother, Reynolds, is trying to remain optimistic about her daughter's whereabouts.

Sometimes I think that she's OK. Sometimes I start thinking that the worst can happen. That's how I've been feeling. I lay my head down at night and wonder where she is. Am I going to see her again? Do I get to see her beautiful smile? Reynolds said of her daughter Ayla. She's my little girl.

Reynolds and DiPietro have never lived together as a couple, Reynold's sister, Jessica, told the AP. A drinking problem prompted Reynolds to seek therapy and enter rehabilitation for 10 days in October. Child welfare agents placed Ayla with her father, DiPietro, during that time.

Reynolds filed court papers Thursday of last week in the hope that it would lead to her regaining custody of her daughter. She told CNN that she is seeking custody now because DiPietro is vindictive and verbally abusive.

DiPietro said Tuesday that while he currently has sole custody of Ayla, It has always been my intention to have a shared parenting arrangement with Ayla's mother and I will continue to work towards that when Ayla is returned to us.

Alya is just under three feet tall and weighs approximately 30 lbs. She has blue eyes and blonde hair. She was last seen wearing pajamas with Daddy's Little Princess written on her top. Her left arm was in a soft cast from an accident three weeks ago.

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