About 100 people gathered in Jerusalem's Zion Square on Saturday night to demonstrate support for the Arab youth who was beaten at that same site on Thursday evening, Army Radio reported.
Three Arabs were beaten by dozens of Jewish youth on Thursday, in what witnesses described as a "lynch situation."
A 19-year-old Jewish Jerusalem man was arrested on Saturday afternoon in connection with the beating. He will be remanded at the Jerusalem Magistrates Court on Saturday. Police refused to say whether he had a history of similar incidents, though they expect a number of additional arrests in the coming days.Melanie Lidman contributed to this report.