Police in Amsterdam on Sunday arrested several dozen people at an unauthorized anti-Israel protest rally at a square where, days earlier, Muslims assaulted Israeli soccer fans.

The arrests at Dam Square followed a temporary municipal ban on the anti-Israel demonstrations that regularly take place there. The ban followed the coordinated assault on Thursday by at least 100 Muslim men on fans of Israel’s Maccabi Tel Aviv soccer team who were leaving a match against the local Ajax team.

Five Israelis were moderately wounded and another 20 suffered light injuries. Some 2,000 people left the Netherlands for Israel over the weekend in eight emergency flights organized by El Al, Israel’s flag carrier airline. The assaults, which Israeli President Isaac Herzog called a “pogrom,” shocked many in Israel and beyond.