Abigail Hernandez has been missing since she walked home from school on Wednesday. Investigators at the Kennett High School football game in Conway, N.H., on Friday asked those in attendance whether they had seen anything that could be related to her apparent disappearance, the Mail Online reported.

ABC News wrote that her family wished a happy birthday to the teen, who turned 15 on Sunday. “Happy birthday, Abi,” her mother Zenya Hernandez said while in front of the headquarters of the Conway NH Police Department.

According to the missing-person flier posted online by the police, Abigail Hernandez is 5 feet 4 inches tall, weighs 118 pounds, and has brown eyes and long brown hair. She is described as Hispanic with a light olive complexion. She was last seen wearing black leggings/yoga pants, a gray striped multicolored sweater and black leather boots.

Speaking at a press conference on Saturday, Jane E. Young, a state associate attorney general, said: “We are here for one reason -- to do whatever we can to find Abby. ... We’re trying to put together a timeline of when she went missing, the day before she went missing.”

The FBI’s Child Rapid Abduction Deployment team has been brought in to help in the search for the missing, the Mail Online said. The teen apparently made it back to her home and then vanished shortly afterward. A police dog traced her scent back to the home, but it then disappeared.

Police said there isn’t any evidence the teen was abducted, but they just don’t know where she went. “There are no real significant clues leading us one way or another,” police Lt. Chris Perley told the Conway Daily Sun, according to the Mail Online.

Dozens line-searched the woods around Cranmore Mountain ski resort, ABC News wrote, and even though nothing turned up after police searched for her in a Massachusetts State Police helicopter, they’re not giving up.

“We are nowhere near done,” Maj. Kevin Jordan of the Maine Fish and Game department told the news site. “We are here to find Abi and to bring her home.”

Investigators have interviewed her parents, neighbors, schoolteachers and fellow students.

If anyone has information on her whereabouts, Conway police can be reached at (603) 356-5717.