Indiana authorities have issued a Silver Alert for a missing 16-year-old girl believed to be “in extreme danger and may require medical assistance.”

Marley Richie is described as 5 feet 4 inches tall and about 135 pounds with brown hair and eyes, according to the Scott County Sheriff’s Office.

She was last seen at about 9:30 p.m. on Saturday wearing a white tank top and blue checkered pajama pants.

“Please, if anyone knows the whereabouts of Marley Richie, I plead for you to please give us a call so we can bring her home,” Sheriff Jerry Goodin said. “Marley …i f you see this release, please reach out to us or any law enforcement agency so we can help you and your family … our primary goal is to see you home, nothing else.”

The sheriff’s office asked anyone with information to call them at 812-752-5550.

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[Featured image: Marley Richie/Scott County Sheriff’s Office]