Spring Lake, N.C. — The search for an 11-month-old missing Harnett County girl continued on Saturday.

Authorities issued a statewide Amber Alert on Friday after Harmony Jade Creech's grandmother reported her missing at 11:30 a.m.

Harmony was last seen in her crib in the family's Spring Lake home, at 1680 Ray Road, around 11 p.m. Thursday. Investigators said Harmony’s mother, Johni Michelle Heuser, claimed to be the last one to see the child after putting her to bed Thursday night.

Harmony is described as 2 feet, 7 inches tall and about 18 pounds. She has sandy blond hair and blue eyes and was last seen wearing pink pajamas with the words "Daddy's Girl" and a picture of a crown on one arm.

A pink bed sheet, a few bibs and most of her clothing were also taken, authorities said.

Harnett County Sheriff Larry Rollins said the window in the baby’s room was open. The screen had been removed and was sitting outside of the house, he said.

Heuser's three other children, all under age 5, were in the home overnight, but they were not harmed, Rollins said. A local day-care center was keeping the children until deputies finished their investigation.

Ronald Earl Creech II is a soldier with the 82nd Airborne Division at Fort Bragg who returned from deployment in Iraq on Friday morning, Rollins said. His daughter was born while he was overseas, the sheriff said.

He is not the father of Heuser's other three children, authorities said.

Investigators said the grandmother picked up Ronald Creech II at the airport Friday morning while Heuser stayed behind. When Ronald Creech II and the grandmother returned home, the baby was gone, officials said.

Investigators interviewed the girl's parents and some neighbors Friday afternoon. Heuser was questioned late Friday night.

The Harnett County Sheriff's Office set up a roadblock across the street from the house on Friday. They showed the dated photo of the baby girl to motorists, hoping to get a break in the case.

The sheriff’s office is being assisted in the investigation by the National Center for Missing and Exploited Children, the Federal Bureau of Investigation and other agencies. Crime scene technicians were also expected to arrive Saturday to help process evidence.

Anyone with information is asked to call the Harnett County Sheriff's Office at 910-893-9111.