12:44 – 12:48 p.m. - 12:44 – 12:48 p.m.

12:44 p.m.: Capitol Police officers and agents from the FBI and the Bureau of Alcohol, Tobacco, Firearms, and Explosives are dispatched to investigate reports of a pipe bomb with a timer found outside the Republican National Committee headquarters and suspicious packages at the Supreme Court and near the Democratic National Committee headquarters. (via the Washington Post)

12:45 p.m.: Capitol Police Chief Steven Sund calls House Sergeant at Arms Paul Irving. (via U.S. Senate committee staff report)

12:46 p.m.: Chief Sund calls Senate Sergeant at Arms Michael Stenger. (via U.S. Senate committee staff report)

12:46 p.m.: Capitol Police begin executing protocols to keep the peace. (via the Washington Post)

12:48 p.m.: Chief Sund texts Michael Stenger, “FYI we’re running a concerning suspicious package over by the Republican club by the S. Capitol St. metro.” (via U.S. Senate committee staff report)