During the Glastonbury performance, which is aired annually on BBC, one of the group’s members, Bobby Vylan, led the crowd to chant, “Death to the IDF,” referring to the Israel Defense Forces, to the shock of organizers and onlookers.

Bob Vylan, known for mixing grime and punk rock, tackle a range of issues including racism, homophobia and the class divide in their songs and have previously voiced support for Palestinians.

The same day the Trump administration announced it had banned the punk rock group from entering the United States, it was reported that wanted war criminal Israeli Prime Minister Benjamin Netanyahu would be welcomed to Washington next Monday.