A Brooklyn synagogue was attacked by a crazed anti-Semite Thursday morning.

The incident, which occurred at the “Apta” Satmar hassidic synagogue on Lee Avenue in Williamsburg, was captured by the synagogue’s security cameras.

While the circumstances behind the attack are unclear, witnesses said a man burst into the synagogue just after morning prayers, attacking a group of congregants who had stayed on to study Talmud.

The attacker tried swinging a ladder at the congregants. When he failed to injure anyone, he became even more enraged and began overturning benches and tables.

Those present in the synagogue quickly fled, notifying the police and Shomrim, a local Jewish neighborhood watch group.

Members of the Shomrim quickly arrived and detained the attacker, holding him until police officers arrived and took the man into custody.