Police are appealing for information about 15-year-old Aimee Louise Pryke from Corby who has not been seen since 6pm on Monday.
Aimee is 5ft 3in with a slight build and shoulder-length brown hair, a pale complexion and brown eyes.
She was last seen in Studfall Avenue yesterday evening.
A police spokesman said: “We are appealing for Aimee to get in touch, or anybody with any information about her whereabouts.”
Anyone with any information can call Northamptonshire Police on 101 or they can call the independent charity Crimestoppers anonymously on 0800 555111 or use the anonymous online form at www.crimestoppers-uk.org.