Reform UK has deleted social media posts after receiving a legal letter from the Labour Party.

Addressed to Llŷr Powell, Reform UK’s by-election candidate, the letter accused Reform of using copyrighted images in its material for the Caerphilly by-election.

On 7 October, Labour gave the party 24 hours to remove an image featuring the first minister and candidate Richard Tunnicliffe, warning that failure to do so could lead to legal proceedings.

Reform UK confirmed the posts have since been removed from its social media accounts.

The move follows a row last week, when Reform UK sent its own legal letter to Welsh Labour, citing the Defamation Act 2013 and the Representation of the People Act 1983.

The letter came after online posts appeared to link candidate Llŷr Powell to Russian president Vladimir Putin – an accusation the party strongly denies.

Reform also objected to references that suggested former Reform Wales leader Nathan Gill had taken bribes.

Last month, the 52-year-old from Llangefni, Anglesey, admitted eight counts of bribery between 6 December 2018 and 18 July 2019.

The dispute comes ahead of the Caerphilly by-election on 23 October, where the candidates are: Richard Tunnicliffe (Welsh Labour), Lindsay Whittle (Plaid Cymru), Gareth Potter (Welsh Conservatives), Llŷr Powell (Reform UK), Gareth Hughes (Wales Green Party) Steven Aicheler (Welsh Liberal Democrats), Roger Quilliam (UKIP), Anthony Cook (Gwlad).