A mass shooting during a Hanukkah celebration at Bondi Beach in Sydney, Australia, on Sunday left at least 10 people dead and 11 others injured, according to authorities.

The New South Wales Police Force confirmed on X that ten people were killed in the shooting, including one of the suspected gunmen. The second alleged shooter is in critical condition.

At least 11 others were injured, including two police officers, the agency confirmed.

The annual celebration, known as "Chanukah By The Sea," was scheduled to kick off at 5 p.m. to celebrate the first day of the Jewish holiday by lighting the first candle on the Menorah.

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Israeli President Isaac Herzog acknowledged the attack while speaking at an event in Jerusalem recognizing immigrants' extraordinary achievements on Sunday.

"At these very moments, our sisters and brothers in Sydney, Australia, have been attacked by vile terrorists in a very cruel attack on Jews who went to light the first candle of Chanukah on Bondi Beach," Herzog said. "Our hearts go out to them. The heart of the entire nation of Israel misses a beat at this very moment, as we pray for the recovery of the wounded, we pray for them and we pray for those who lost their lives."

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Herzog also called on the Australian government to "seek action and fight against the enormous wave of antisemitism which is plaguing Australian society."

This is a developing story. Check back for updates.

The U.S. troops who were killed and injured in Saturday’s ambush attack in Syria were members of the Iowa National Guard, a senior U.S. official told Fox News.

An ISIS gunman opened fire with an automatic weapon in the central Syrian town of Palmyra, killing two Iowa National Guard soldiers and an American civilian translator, the official said. 

Three additional U.S. soldiers were wounded in the attack.

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Preliminary information suggests the attacker was once affiliated with the Syrian government forces and had been a low-level member of the Syrian Security Forces, before later becoming connected to ISIS, the official said. 

"He was not a part of the official delegation that was being escorted by the US and Syrian troops," the official said. "… This would not be considered a ‘green on blue’ incident because the Syrian gunman was not part of the US/Syrian partnered delegation."

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Earlier Saturday, U.S. Central Command confirmed the deaths and injuries were a "result of an ambush by a lone ISIS gunman in Syria."

President Donald Trump warned that there will be "very serious retaliation" following the ambush.

"We mourn the loss of three Great American Patriots in Syria, two soldiers, and one Civilian Interpreter. Likewise, we pray for the three injured soldiers who, it has just been confirmed, are doing well," Trump wrote on Truth Social. 

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Trump added, "This was an ISIS attack against the U.S. and Syria, in a very dangerous part of Syria, that is not fully controlled by them."

Last month, two West Virginia National Guard members were ambushed and shot near the White House in Washington, D.C., in a targeted attack that left one soldier dead.

Fox News' Greg Norman contributed to this report.