A number of missing person fliers has been posted on both sides of the border following the disappearance of a Porter High School freshman in Matamoros.
"There's no phone calls, no communications-- her mother, her father or her friends haven't heard from her," Blanca Perez-Moreno said.
Carolina Gonzalez Garcia hasn't been seen or heard from since Thursday evening at 11:30.
She went there to stay at her father's home in Matamoros at the time.
According to her father, Carolina was finishing her homework when he called home while out running a quick errand.
When the father returned she was gone, according to Moreno who's the missing girl's God-Mother.
"I'm worried," she said. "I'm very concerned... she's never been away this long... and she's never ran away from home."
Moreno says Carolina and her brother live at her house in Brownsville.
Both siblings went Thursday after school to Matamoros.
Only her brother went to school the next day.
Blanca filed a runaway report with the Brownsville Police Department.
A missing person's report was filed by Carolina's father in Matamoros.
Bridge agents have been put on alert and were given a copy of the girl's Texas Identification.
She has not attempted to cross back on foot.
It's believed the student, described as reserved, may have been lured by an older teen online who lives in Matamoros.
"Through 'facebook' and through her father I guess asking her brother... they came up with a name of a young man that she had been talking to," Moreno said.
But the fact remains; nobody knows where she is or what happened to Carolina.
And it's that fear of the unknown that has loved ones on both sides of the border fearing the worst.
"The general turmoil and the violence going on," Moreno said.
"So what I'm trying to do is get her face out there and help so they find her just because of how violent it is and especially for a girl just 15."