An Amber Alert has been issued for 13-year-old Priscilla Elisabel Martinez, who may be with 41-year-old Rudolfo Nuncio Jr., authorities say.
Nuncio was last seen in the South Texas city of Donna on Wednesday evening, according to the Hidalgo County Sheriff's Office, who is leading the investigation.
Martinez is described as 5 feet 11 inches tall and 160 pounds. She has black hair, brown eyes and was last seen wearing black glasses.
Nuncio has brown hair, brown eyes and weighs 180 pounds. He's believed to be driving a 2015 silver Dodge Ram pickup with Texas license plate HFW-2831.
The truck's mudflaps have winged horses on them.
The sheriff's office says Martinez may be in grave or immediate danger.
An initial version of the Amber Alert stated that Nuncio was last seen in Dallas, but an updated alert said he was last seen in Donna.
A spokesperson for the sheriff's office said there's no specific information linking Nuncio or Martinez to Dallas at this time.
Anyone with information is asked to call the Hidalgo County Sheriff's Office at 956-383-8114.