WASHINGTON (CBSNewYork/AP) — The White House says President Barack Obama will deliver a prime-time address Sunday about the steps the government is taking to keeping people safe following the mass shooting in San Bernardino.

In the 8 p.m. address from the Oval Office, the president will also give an update to the ongoing investigation into the attack that left 14 dead and 21 others injured and will also discuss “the broader threat of terrorism,” the White House said. He will talk about the nature of the threat, how it has evolved, and how he plans to defeat it.

Obama will talk about his determination that the Islamic State group must be destroyed. And he will make the case that the United States must draw the nation’s values – its commitment to justice, equality and freedom – to prevail over terrorist groups.

In his weekly radio and Internet address Saturday, the president called the shootings “an act of terror” carried out by attackers who were possibly radicalized to commit it.

Obama said proven radicalization would underscore the threat posed by people who give in to violent extremist ideologies.

The president’s comments came a day after the FBI said it was investigating Wednesday’s shootings as “an act of terrorism.”

FBI Director James Comey said evidence thus far indicates the shooters showed signs of radicalization but were not part of a broader terrorist network.

Several Republican presidential candidates had quickly labeled the shootings an act of terrorism and faulted Obama for not saying so immediately.

On Thursday, as investigators were searching for a motive, Obama said at the White House that the shootings could have been terrorist-related or workplace-related.

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