Dramatic video from Monday night shows clashes between Israel supporters and keffiyeh-clad anti-Israel agitators at a real estate expo in Brooklyn, following a similar clash last week.

The footage, taken outside the Young Israel Synagogue, shows a chaotic scene where the two sides square off on a sidewalk, while anti-Israel mobs swarm the street, some waving Palestinian and Hezbollah flags.

Four people were taken into custody as the chaos unfolded around 6:45 p.m. on Ocean Avenue, the NYPD said.

In the video, a male Israel supporter raises fists in front of a mob, many of whom hold signs with anti-Israel messaging. At one point, the man deploys pepper spray in the direction of the mob.

WATCH: Violent anti-Israel mob protests outside Brooklyn synagogue

The clash was instigated by the anti-Israel brigade, which was protesting a real estate expo, "The Great Israeli Real Estate Event," showing off property for sale in Israel, which they say is in "stolen land" in the "occupied" Palestinian territory in the West Bank.

According to the arrested by NYPD officers after a scuffle that ended with the arrestee being thrown to the pavement.

The Jerusalem Post noted that anti-Israel crowds shouted slogans including, "Brick by brick, wall by wall, Zionism will fall," and "Free Palestine."

"We’re here today to send a message to the city and to send a message to the organizers that these kinds of events cannot and will not stand in New York City," said Taher Dahleh, an organizer with the Palestinian Youth movement, according to Zohran Mamdani and the city council in early June.

Neither Mamdani's office nor the NYPD returned Tuesday morning comment requests.