Israel's representative in Eurovision was disturbed during the rehearsal before Thursday evening's semifinal, writes the organizers in a press release.
Six people waved large flags and blew whistles – and were subsequently removed by security guards.
Even during Wednesday's rehearsals, a protest was made against the Israeli when a person in the audience unfolded a large Palestinian flag.
Israel's contestant, 24-year-old Yuval Raphael, is one of the survivors of Hamas' attack on an Israeli music festival on October 7, 2023.
The country's participation in the Eurovision Song Contest has been disputed since the war in Gaza began.