Inauguration rehearsal is evacuated due to 'external security threat'  

Daily Mail

A rehearsal for the inauguration had to be called off and everyone in attendance evacuated on Monday morning due to an 'external security threat'. https://www.dailymail.co.uk/news/article-9160157/Inauguration-rehearsal-evacuated-external-security-threat.html?ns_mchannel=rss&ns_campaign=1490&ito=1490