![Barack Obama FILE - In this June 18, 2015 photo, President Barack Obama pauses while speaking in the Brady Press Briefing Room of the White House in Washington, on the church shooting in Charleston, S.C., prior to his departure to Los Angeles. After nine black parishioners were slain at a Charleston church, South Carolina did what many thought would never happen: It moved the Confederate flag off Statehouse grounds. But a year later, little has changed in Charleston. (AP Photo/Manuel Balce Ceneta, File)](https://api.time.com/wp-content/uploads/2016/06/obama.jpg?quality=85&w=2400)
President Obama will address the country Sunday afternoon in the wake of the deadly Orlando nightclub attack, which is the worst mass shooting in U.S. history.
Obama was set to speak beginning at 1:30 p.m. ET, the White House said, in just the latest time in his presidency when he has spoken in the aftermath of a mass shooting.
Fifty people were killed and 53 were injured when the shooter, identified as Omar Mateen, opened fire at the crowded Pulse Orlando nightclub early Sunday morning. Authorities were investigating his motive and working to identify the victims on Sunday afternoon.
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