A bomb threat in Miami yesterday cleared out and closed down a Society of Professional Journalists panel featuring some of the key figures of the GamerGate movement.

WPLG-TV of Miami reported that Miami-Dade Police responded to the Koubek Center at Miami Dade College around 2:30 p.m., after being tipped off about a bomb threat against the building. The report said someone at the Miami Herald received an email about the bomb threat and sent it to authorities. No explosives were found at the scene.

Polygon has reached out to officials with both the Miami-Dade Police Department and the Society of Professional Journalists Region 3 and will update this story when more information is known.

Milo Yiannopoulos, a writer for Breitbart.com and one of the principal voices of the year-old movement, tweeted from the scene about the evacuation and its aftermath. Yiannopoulos said "multiple bomb threats were called in to stop this event." A Vine shows him and Christina Hoff Sommers of the American Enterprise Institute, another noteworthy voice in GamerGate, leaving the auditorium

This is not the first bomb threat against a venue where both were due to appear to discuss GamerGate. In May, a threat against a Washington D.C. restaurant evacuated the first official get-together in the United States for GamerGate supporters.

SPJ Region 3, which hosted the "AirPlay" event featuring these and other speakers, appeared well aware of the potential for disruption to the event. In this post five days ago , Region 3 director Michael Koretzky detailed AirPlay's plans to ward off threats, harassment or disruption, mentioning that he had enlisted "both online and onsite security experts to keep AirPlay safe." Koretzky noted that when the event was initially publicized, the building's management was emailed with a question asking why it was letting a hate group use their facility.

GamerGate has been accused, collectively, of online harassment and making similar bomb threats against its critics and their events, charges its supporters vehemently deny.