Hamilton police say they are searching for a missing 16-year-old girl who is part of an ongoing custody dispute.

Police say Amanda Memmolo was reported missing on Aug. 1. She has not been seen since July 18, said Staff Sgt. Robin Abbott.

Memmolo's mother was in the U.S. around that time, she said, while her father lives here. A custody dispute has "complicated the investigation," Abbott said.

"She went on a camping trip with her uncle on the consent of her dad, and she failed to return home," Abbott said. "We're concerned for her safety because of a medical condition."

Detectives say they believe Memmolo is with her uncle, Bruno. (Hamilton police)

Police say that the teenager has epilepsy, and requires medication for seizures.

Detectives say she presents at a 12-year-old level, cognitively and physically. She is described as about five feet, three inches tall, with a medium build and dark brown hair.

Police say she is believed to be with her 53-year-old uncle, Bruno Memmolo.

He is described as five feet, seven inches tall, with a heavy build, a shaved head, dark facial hair, and a Led Zeppelin tattoo on his left shoulder.

Police do not have any vehicle information connected to the case, Abbott said.

Anyone with information is asked to call police at 905-546-3886, or Crime Stoppers.