KNEECAP and Bob Vylan's Glastonbury performances are now subject to a criminal investigation, police have said.
The festival performances have now been recorded as a public order incident, Avon and Somerset Police confirmed on Monday.
It comes after Bob Vylan have had their US visas revoked ahead of a tour later in the year.
US Deputy Secretary of State Christopher Landau said it was because of “their hateful tirade at Glastonbury”.
Bobby Vylan, one half of the rap duo Bob Vylan, chanted "death, death to the IDF” along with "free, free Palestine" during the pair’s Glastonbury performance on Saturday.
On Monday, the BBC said they regretted livestreaming the performance following a backlash.
Bob Vylan's performance was livestreamed on the BBC, before it was cut out ahead of Irish rap trio Kneecap's appearance.
Kneecap have been put under investigation after one member suggested fans “start a riot” outside his bandmate’s upcoming court appearance.
They also led chants of "free Palestine" and "f*** Keir Starmer" during their hotly anticipated set.
The court case is currently ongoing.
And now, Avon and Somerset police have said following a review of footage of both performances at Glastonbury, they have launched a criminal probe.
A spokesperson said: “Following the completion of that assessment process we have decided further inquiries are required and a criminal investigation is now being undertaken. A senior detective has been appointed to lead this investigation.
“This has been recorded as a public order incident at this time while our inquiries are at an early stage.
"The investigation will be evidence-led and will closely consider all appropriate legislation, including relating to hate crimes.
“We have received a large amount of contact in relation to these events from people across the world and recognise the strength of public feeling. There is absolutely no place in society for hate.
“Neighbourhood policing teams are speaking with people in their local communities and key stakeholders to make sure anyone who needs us knows that we are here for them.
"We hope the work we have carried out, and are continuing to carry out, reassures the public how seriously we are treating Saturday’s events.
“We politely ask the public refrain from continuing to report this matter to us because an investigation is already taking place.”
