INITIAL ALERTTwitter/X
Verified verbatimGeorge Mason University official Twitter/X post — initial Mason Alert at 12:52 PM EDT on March 13, 2026244 chars
🚨 Mason Alert: The Fenwick Library on the @GeorgeMasonU Fairfax campus is closed until further notice to allow University Police to investigate a potential bomb threat. Please leave the Fenwick Library and stay away from the area. #MasonNation
Verbatim from George Mason University's official X post timestamped 12:52 PM EDT on March 13, 2026, including the siren emoji and #MasonNation hashtag as posted
University Police Chief Carl Rowan confirmed the threat was emailed and included a specific location and possible detonation time
The incident occurred during spring break, so the campus had lower occupancy than normal