A Jackson Browne concert scheduled for tomorrow is reportedly part of an FBI investigation after banners were found outside of an Indiana church this weekend that threatened a massacre like the recent one in Las Vegas which claimed the lives of 58 people.

Lafayette, Ind.'s WLFI reported that the FBI were called in to investigate banners that were found hanging outside of the Unitarian Universalist Church yesterday. One of the banners read "Die [expletive]. Orlando just like [Las] Vegas." The date "January 23" (which is misspelled as "Janury") is also on that banner.

A second banner specifically names Browne. You can see photos of both banners above.

Browne is scheduled to perform at the Walt Disney Theater in Orlando tomorrow.

This isn't the first time flyers have been posted threatening terrorist acts at a Browne concert. Last April, similar threats surfaced against Browne in Windsor before he performed a concert there, with flyers saying "Shoot a Socialist." Additional security was provided for the show, and Browne even joked about it onstage. And then in May, police looked into flyers that showed up on doors and in driveways near Purdue University that also targeted Browne and "college liberals” who didn’t agree with President Donald Trump. Purdue is located near the same area where the most recent banners appeared.

Following the May incident, which provided no leads or suspects and – like the most recent banners – wasn't tied to a local performance by Browne, a detective noted that “it’s just kind of unusual that something would be directed toward an individual like that who has no connection to the area.”

Still, authorities are taking the threats on the new banners seriously. In addition to notifying the FBI, law enforcement in Orlando have been contacted.

On Oct. 1, 2017, a gunman opened fire on concertgoers gathered on the Las Vegas Strip for a country-music festival. Stephen Paddock fired more than 1,000 rounds into the crowd from the 32nd floor of a nearby hotel, killing 58 people and injuring more than 850 others.