"The team were dealing with a live situation, but with hindsight, we should have pulled the stream during the performance," a statement from the U.K. public broadcaster said.

The BBC says it regrets not cutting off the Glastonbury festival live stream of punk-rap duo Bob Vylan's performance, which included an anti-Israel chant.

A criminal investigation has been launched over performances by Bob Vylan and Kneecap at Glastonbury on Saturday, Avon and Somerset Police has said. The force said it had appointed a senior detective to investigate whether comments made by either act amounted to a criminal offence after reviewing footage.