Arizona teen Alicia Navarro suddenly walks into Montana police station almost 4 years after vanishing

Glendale, Ariz. — An Arizona teenager who disappeared without a trace nearly four years ago is safe after walking into a police station in Montana, authorities said Wednesday.

Alicia Navarro, 18, of Glendale, showed up alone this week in a small town about 40 miles from the Canadian border and identified herself, according to police in Glendale, a Phoenix suburb.

On the website called "X," formerly known as Twitter, police said they were "proud to announce that Alicia Navarro has been located!"