Mexican authorities arrested a Texas woman after she illegally crossed the border trying to give Christmas presents to migrants awaiting asylum.

Anamichelle Castellano loaded up her truck with more than 300 gifts for migrant children detained in Mexico on Monday, according to KTRK. She and another woman were headed from Brownsville, Texas, into Matamoros, Mexico, when they were stopped by authorities.

Castellano, who owns the nonprofit Socorro Foundation, had been making routine visits to the makeshift migrant detention centers in Mexico since President Trump negotiated that migrants apply for asylum in Mexico before entering the United States.

She forgot that her husband had left ammunition in the vehicle during a trip across the border last week when she loaded it up with gifts. The ammunition triggered the X-ray machines used by Mexican authorities at the border.

Castellano, who was dressed as Mrs. Claus during the arrest, thought she would just be given a warning to not make the mistake of bringing ammunition into the country again, but her parents claim that Mexican authorities jailed their daughter for several hours and issued threats against her in an attempt to shake her down for cash.

"[They are] kind of threatening her with federal prison, federal this and federal charges, and we believe this is all a big setup where they're trying to see what they can get out of it," said her father, Genaro Lopez.

He added, “I mean, this is Santa Claus coming in to give toys to the unwanted, and you're doing what? You're doing what? You're threatening her for what?"

Castellano’s husband tried to negotiate with the prosecutor but was unsuccessful.

"He refuses to compromise to anything even though it's something so minor, and so he's not bending," said Jehu Castellano after interacting with a Mexican prosecutor. "We had one attorney, it was a different attorney, and he came and when he went to talk to them, he came back and said he needed so much money to be able to help us, and it was a ridiculous amount of money, in the thousands."

Castellano was released later that night after being charged with possession of ammunition.