FREMONT -- A special needs teenager who went missing last week is safe at home after being located walking along an Interstate 580 ramp by the California Highway Patrol.

A CHP officer found 15-year-old Kristina Krage, in good health walking on an eastbound I-580 off-ramp to Harbor Boulevard in Richmond over the weekend, Fremont Police Spokeswoman Geneva Bosques said Monday.

Krage disappeared from her Glenmoor neighborhood home about 2 a.m. Friday.

When the officer found her Saturday she was in good health, Bosques said.

On Monday she was back in the custody of her family.

Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.