55-year-old Maysville resident Marie A. Castelli has been arrested for allegedly promoting ISIS and calling for terrorists attacks in the U.S.

The FBI arrested Castelli after she allegedly advocated online for terrorist attacks in the U.S. and promoted ISIS propaganda through her social media accounts.

Maysville Police say federal authorities detained Castelli close to her home while walking her dogs on West Second Street on Thursday afternoon.

Castelli was booked into the Boone County Jail Thursday. Friday, she was released to the United States Marshal's Office of Kentucky.

The FBI tells WKYT Castelli appeared before a federal judge Friday for arraignment. The court ordered Castelli detained pending any further orders of the court.

Friday night, neighbors told us they're used to seeing Castelli outside, often walking around in downtown Maysville. One of them, Herbert Freeman, says there's no way his neighbor is a threat.

"I always work on the theory that you can tell a lot about a person by how they treat animals, and how animals treated them, so I liked her right away, and she liked me," Freeman said. "I don't know much about her, but the person I know doesn't sound like she's any sort of a terroristic threat to anybody."

WKYT first met Castelli last October, when she talked to us about her neighbor, Lori Doppelheuer. Doppelheuer and her three boys died in a fire, one day before federal agents accuse Castelli of posting threatening material.

Doppelheuer's fiance talked to WKYT off camera Friday night. He says Castelli came over to the family's home almost every day, as they considered her a friend. He says he doesn't think the charges against Castelli have anything to do with the deadly fire.

The FBI says there is no current threat to public safety based on this arrest. They also say this is not related to the upcoming anniversary of the terrorist attacks of September 11, 2001.

Castelli is due back in court on October 27th at 10:30 a.m. before a federal judge in Covington. Her trial is scheduled for November 7th at 9:30 a.m. The trial is expected to last 12 days.