UPDATE: The Missing Child Alert that was issued on 12/13/2013 for Shaniya Jacques-Louis has been cancelled, according to FDLE.

Miami Police launched an all-out effort Friday night to find a missing 4-year-old girl who went missing right outside her Little Haiti home.

A search chopper circled the skies, while bloodhounds, using a scent from her backpack, sniffed the ground below for Shaniya Wendy Jaques-Louis. As the hours wore on, authorities were wary that their odds of finding the toddler were growing slimmer.

"We will continue as much we can, trying to think of new things that we haven't touched on as of yet," said Miami Police spokeswoman Frederica Burden. "Our window is closing in."

Initially, their efforts turned up no leads. As Jaques-Louis' family gathered, the Miami Police Department's Special Victims Unit conducted a grid search, which spanned several blocks in all directions.

According to police, Jaques-Louis was last seen at about 4 p.m. Friday while playing with her sister and other kids behind a fence outside her family's home at 36 Northeast 64th Terrace.

Police said the missing girl's mother was inside her first-floor apartment at the time. Though it appears the children were unsupervised, authorities said a neighbor was keeping watching over the kids from across the street.

At some point, the other children said they left Shaniya all alone on her tricycle in the fenced-in area. When they returned, the bike was still there, but Shaniya was gone.

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The kids told Jaques-Louis' family she was gone, and they began searching for her on their own before calling in police. Several hours later, the toddler's mother and father were taken to police headquarters for informational interviews.

"The family is still a little anxious which is expected. Our department, the units that are out here are being hopeful that we do find [Shaniya]," said Burden.

Jaques-Louis was last seen wearing a black and blue shirt, purple shorts and knee-high black socks. Her hair was in braids. She weighs about 40 pounds, and is approximately 3-and-a-half feet tall.

Anyone with information on her whereabouts is urged to call Miami-Dade Crime Stoppers at 305-471-8477.