Plaid Cymru has been criticised for attending a Welsh independence rally which included a message of support by a member of Irish Republican rap group Kneecap.
The event saw thousands of people march through Barry, Vale of Glamorgan, on Saturday.
On Sunday it emerged footage of a Kneecap gig in 2023 allegedly calling for the death of British MPs is currently being assessed by counter-terrorism police.
Former Welsh Conservative leader Andrew RT Davies said Plaid had stayed "silent" and accused the band, who he referred to as supporters of the party, of spreading "bile".
Plaid said it was not one of the organisers of the rally and condemned any comments that may support terrorist groups.
Yes Cymru, one of the organisers, said they were unaware of any potential police investigation at the time of the rally.
