Emma Riney left for school on the morning of Thursday Feb. 11 but never arrived there, authorities in Hardin County said.
She was driving a grey 1996 Nissan King Cab truck with a license plate of 307-LTT.
Riney is believed to be with an unknown adult male (pictured above).
She has been in touch with friends on and off since going missing, police said.
Anyone with information on Riney’s whereabouts—or the identity of the male—is urged to call police at 270-766-5078.