South Carolina police are looking for Gabrielle "Gabby" Swainson, a 15-year-old cheerleader who disappeared over the weekend while her mother was at work.

"We're going into day five now and that's not somewhere that we wanted to be. We need to bring her home," said Chandra Cleveland-Jennings, an investigator with the Columbia S.C. Protection Agency, a security group hired by the family to assist in the case.

Swainson was last seen at about 3:30 a.m. Saturday in her Columbia home, when her mother, Elvia Swainson, left for work.

The girl's mother told police her daughter was asleep in her bedroom before she left. When the teen's mother returned at about 7:15 that morning, she heard an alarm clock going off inside the home, according to Cleveland-Jennings.

She yelled for her daughter and when she didn't answer, Swainson went upstairs, but Swainson was one. The alarm had been set for 5:45 a.m., suggesting the teen was not there when it went off.