Let's try a different source (Belfast Live) to see if that helps you understand that both acts are being investigated.
In a post on social media, Avon and Somerset Police said: "We are aware of the comments made by acts on the West Holts Stage at Glastonbury Festival this afternoon.
"Video evidence will be assessed by officers to determine whether any offences may have been committed that would require a criminal investigation.”
The videos under scrutiny reportedly include those of punk pair Bob Vylan and Irish hip-hop group Kneecap, reports the Manchester Evening News.
This scrutiny follows a government statement expressing "strong condemnation" of Bob Vylan's comments. Bob Vylan stirred up the audience with chants of "Free, free Palestine" and "Death, death to the IDF" before Kneecap took the stage.
Kneecap's Moglai Bap, real name Naoise O Caireallain, openly criticised the Prime Minister during their set, stating: "The Prime Minister of your country, not mine, said he didn't want us to play, so f* Keir Starmer."
The band also echoed the sentiment with their own "Free Palestine" chants, before suggesting fans “start a riot” outside one member of the band’s upcoming court appearance.
www.belfastlive.co.uk/news/uk-world-news/kneecap-glastonbury-set-being-investigated-31954516