President Donald Trump pledged to “eradicate the evil scourge of anti-Semitism” after five people were stabbed during a Hanukkah celebration.

On Saturday night, Dec. 28, a man broke into Rabbi Chaim Rottenberg’s synagogue in Monsey, New York, and stabbed five Orthodox Jews with what appeared to be a machete.

On Sunday, President Trump expressed his condolences and promised to help fight anti-Semitism in the United States.

“The anti-Semitic attack in Monsey, New York, on the 7th night of Hanukkah last night is horrific,” he wrote on his Twitter account.

“We must all come together to fight, confront, and eradicate the evil scourge of anti-Semitism. Melania and I wish the victims a quick and full recovery,” he added.

Police identified the attacker as Grafton Thomas, 37, and he was arraigned on Sunday morning.

Thomas faces five counts of attempted murder and one count of robbery, but has pleaded not guilty to all charges.

All five victims were hospitalized, and at least one remains in critical condition.

New York Democratic Gov. Andrew Cuomo called the attack an “act of domestic terrorism.”

The incident occurred a few weeks after a kosher restaurant in New Jersey was the scene of a shooting led by armed men in which the two attackers, a policeman and three bystanders were killed.