A 13-year-old Chattanooga boy has been missing since Saturday and police are asking the public's help.

Isyah Funk walked off after an argument with his mother, according to a news release from Chattanooga police spokeswoman Sgt. Jerri Weary.

The release said Isyah has walked away before but has never stayed away so long before. He has not contacted anyone in his family, Weary said.

He is 5 feet, 2 inches tall and 115 pounds, with black hair and brown eyes.

Anyone with information on Isyah's whereabouts is asked to call the Chattanooga Police Department at 423-698-2525.