Members of the British rap punk duo Bob Vylan had their visas revoked by the United States and are under investigation by local police after leading a crowd to chant “death” to Israel’s military at a UK music festival this past weekend.

The U.S. State Department said that it has revoked visas to the Bob Vylan duo for leading a chant of “death” to the Israeli Defense Forces at a music festival in the United Kingdom last weekend.

British police launched a criminal investigation Monday into a televised performance at the Glastonbury Festival by rap punk duo Bob Vylan, who drew intense criticism after they led crowds of music fans in chanting “death” to the Israeli military.