A California teenager pleaded guilty Wednesday in a case involving the swatting of a Florida mosque among other institutions and individuals, federal prosecutors said.

The FBI says a teen intended to cause as much harm as possible by ‘swatting’ multiple locations.

Alan W. Filion, 18, of Lancaster, California, entered the plea to four counts of making interstate threats to injure the person of another, the US Attorney’s Office for the Middle District of Florida said in a news release. He faces up to five years in prison on each count. A sentencing date has not yet been set.

“For well over a year, Alan Filion targeted religious institutions, schools, government officials, and other innocent victims with hundreds of false threats of imminent mass shootings, bombings and other violent crimes. The US Attorney’s Office said Filion made more than 375 swatting and threat calls from August 2022 to January 2024.