OHIO -- 

The Federal Bureau of Investigations arrested an 18-year-old teenager this morning in Ohio for allegedly making prank "SWATTING" 911 calls to schools, churches and other places across the country. 

The FBI says Braden Grace, along with other conspirators, were part of an online group known as “Purgatory,” which reportedly placed swatting calls between Dec. 10 and Jan. 18. The group is believed to have used multiple online social media platforms, including Telegram and Instagram, to coordinate and plan their alleged swatting activities. 

“Among the alleged swatting incidents are a threat to burn down a residential trailer park in Alabama; a shooting threat against a teacher and unnamed students at a high school in Delaware; a shooting and bomb threat to the Albany International Airport in New York; a shooting and bomb threat against a casino in Ohio; and a multiple homicide event and shooting threat against individuals in a residence in Eastman, Georgia,” according to the FBI.

According to court documents, Grace called Hollywood Casino on Jan. 5 under the moniker “bit coin” and threatened a shooting and burning down the building unless he received $100,000 in cash and a helicopter.

Grace is described as 5 feet 9 and 160 pounds with brown hair and green eyes. In addition to Columbus, he reportedly also has ties to North Lima, Ohio.

The Department of Homeland Security Investigations and the FBI are still investigating other prank SWATTING calls.