In the wake of the San Bernardino shootings, President Barack Obama will address the nation from the Oval Office on Sunday night, reports said.

The Oval Office speech will be only the third of Obama's presidency.

Obama will speak on the shooting that killed 14 earlier this week that is being investigated as a possible terrorist attack, and the "broader threat of terrorism," according to CNN.

"The President will also discuss the broader threat of terrorism, including the nature of the threat, how it has evolved, and how we will defeat it," White House Press Secretary Josh Earnest said in a statement to CNN. "He will reiterate his firm conviction that ISIL will be destroyed and that the United States must draw upon our values — our unwavering commitment to justice, equality and freedom — to prevail over terrorist groups that use violence to advance a destructive ideology."

The speech will be broadcast live at 8 p.m. ET.

Obama's previous Oval Office addresses were both in 2010 — over the end of U.S. operations in Iraq, and the Gulf oil spill, according to CNN.