The FBI has arrested two people in Ohio in connection to separate domestic terrorism plots involving ISIS and Dylann Roof.

The agency described Damon Joseph, 21, as an ISIS sympathizer who planned attacks against several synagogues.

Elizabeth Lecron, 23, was also arrested for allegedly purchasing bomb-making materials and planning an attack at a local bar.

According to officials, Lecron had been in contact with Roof, the man who fatally shot nine people at a historically black church in Charleston back in 2015.

"Since at least July, Lecron's been in contact with an individual incarcerated in federal prison in Indiana for his role in the Charleston, South Carolina church shooting,” says Jeff Fortunato, FBI Acting Special Agent in Charge. “In August of this year, Lecron traveled to Columbine, the memorial in Colorado. In advance of the trip she posted, 'It's going to be a lot of fun and I can't wait to post pictures.'"

Both are scheduled to appear in court this week.