A large protest held in New York City’s Times Square on Friday against US recognition of Jerusalem as Israel’s capital featured chants calling for violence and the destruction of the Jewish state, Algemeiner Journal has reported.

In video footage captured by the advocacy group Reservists on Duty (RoD), protesters clad in keffiyehs and waving Palestinian flags can be seen shouting in Arabic, “Khaybar, Khaybar, oh Jews, the army of Muhammed is returning.” The slogan refers to a 7th century battle fought by the Islamic prophet Muhammad against Jewish tribes, and is often invoked by Islamist terrorist groups including Hamas and Hezbollah.

An RoD activist who filmed the rally and requested to remain anonymous said that a few protesters were detained by police officers. “It got really heated,” the activist said. “Protesters started yelling about killing the Jews and saying intifada is the only solution. That was the undertone for the entire march, but then it really came out.”