U.K. police have officially launched a criminal investigation into Bob Vylan and Kneecap's Glastonbury performances from this past weekend.

A criminal investigation has been launched into Bob Vylan and Kneecap’s performance at Glastonbury Festival, as the BBC expressed regret at not pulling the livestream of a performance in which “death” chants were issued.

LONDON (AP) — U.K. police announced Monday that the weekend performances by rap punk duo Bob Vylan and Irish-language band Kneecap at the Glastonbury Festival are subject to a criminal investigation after they led crowds in chants calling for “death” to the Israeli military and chants of “Free Palestine.”