White House national security adviser Jake Sullivan said Sunday that the hostage situation at a Texas synagogue on Saturday was an act of "terrorism" and "anti-Semitism."

Sullivan made the comments on CBS News’ "Face the Nation," despite the FBI saying earlier there were no indications that the hostage situation at the Congregation Beth Israel in Colleyville was directed at the Jewish community.

TEXAS SYNAGOGUE ACCUSED HOSTAGE TAKER WAS BRITISH NATIONAL

 National Security Advisor Jake Sullivan

National security adviser Jake Sullivan talks to reporters during the daily news conference at the White House on June 7, 2021. (Chip Somodevilla/Getty Images)

"It’s too soon to tell at this point what the full parameters of this act of terrorism, this act of anti-Semitism, were," Sullivan said. "We have the Department of Homeland Security, the FBI and law enforcement and intelligence agencies working intensively to get a full picture of what this person’s motives were and whether or not there are any further connections. So I will leave it to the professionals to continue the work today and as we have more information we will share it. 

"But I do think we should all take a moment today to pay tribute to the local, state and federal law enforcement officers who acted bravely, professionally and effectively to rescue those hostages and bring this situation to a safe conclusion," he continued. "They are heroes and they deserve our support. And we all should also raise our vigilance against acts of terrorism, acts of anti-Semitism, particularly at synagogues and places of worship in this country."

Congregation Beth Israel synagogue

Law enforcement officials talk to each other after a news conference where they announced that all hostages at Congregation Beth Israel synagogue were safe and the hostage taker was dead on Saturday, Jan. 15, 2022, in Colleyville, Texas. (AP Photo/Tony Gutierrez)

The hours-long hostage incident ended Saturday night with the hostages safe and the man holding them dead, according to authorities. The hostage-taker, a British national, allegedly had demanded the release of Aafia Siddiqui, a Pakistani neuroscientist who is serving an 86-year prison sentence in Texas after being convicted in 2010 on charges that she shot at U.S. military officers while being detained in Afghanistan two years earlier. 

FBI Special Agent in Charge Matt DeSarno said the captor was specifically focused on an issue not directly connected to the Jewish community and there was no immediate indication that the incident was part of any broader plan.

Colleyville hostage synagogue

Law enforcement officials block a residential street near Congregation Beth Israel synagogue on Saturday, Jan. 15, 2022, in Colleyville, Texas. (AP Photo/Gareth Patterson)

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President Biden struck a similar tone as Sullivan in a statement late Saturday, saying, "There is more we will learn in the days ahead about the motivations of the hostage-taker. But let me be clear to anyone who intends to spread hate—we will stand against anti-Semitism and against the rise of extremism in this country. That is who we are, and tonight, the men and women of law enforcement made us all proud."

Vice President Kamala Harris said in a statement Sunday morning: "While we will learn more about the hostage taker’s motivation, we know this: what happened yesterday at Congregation Beth Israel is a reminder that we must speak up and combat antisemitism and hate wherever it exists."

The Associated Press contributed to this report.