FBI joins search for missing North Carolina girl Kayla Campbell

This undated photo, provided by the Mint Hill Police Department, shows Kayla Campbell.

The FBI has reportedly joined the search for a missing 16-year-old North Carolina girl last seen on Sunday.

Kayla Campbell of Mint Hill, N.C., was reported missing by her father around 6 p.m. on Sunday when she failed to return home.

Teams of police and FBI agents searched a pond in the area Monday after items belonging to the girl were found near it, WBTV reported.

"She's a great kid, couldn't ask for a better sister," Campbell's brother, Josh, told the station Monday night. "All we want right now is for her to come home safe and unharmed."

Campbell left her home Sunday at 2:30 p.m. and was supposed to arrive home by 5:15 p.m., according to the station.

Investigators on Monday pulled a bicycle from the pond but it is not clear whether it belonged to the girl.

Campbell is described as 5 feet, 6 inches tall and weighing 115 pounds, with long brown hair and blue eyes.

Anyone with information on her whereabouts is urged to call the Mint Hill Police Department at 704-847-5555.