Organizers of the Glastonbury Festival said Sunday they are "appalled" by the onstage statements of the punk duo Bob Vylan, whose singer led the crowd in a series of chants including "Death, death to the IDF" and "Free Palestine" the day before.

Foreigners who glorify violence and hatred are not welcome visitors to our country,” wrote U.S. Deputy Secretary of State Christopher Landau.

U.S. State Department bans visas for rap-punk duo Bob Vylan, following controversy over 'death to the IDF' chants during the group's Glastonbury performance.