The BBC has dismissed complaints that Newsnight altered a photo of Jeremy Corbyn to make him look more Russian.
Thursday's show used a graphic of the Labour leader next to images of Moscow as the backdrop to an item about his response to the Salisbury poisoning.
Critics said his hat was digitally altered and it was all designed to make him look like a "Soviet stooge".
But Mr Corbyn's attire was "not in any way altered or 'Photoshopped' to appear 'more Russian'", the BBC said.
In response to complaints, a statement from the corporation said the BBC Two news programme had "a long-running tradition of arresting graphics", which were "applied to all types of stories".
The backdrop showing Moscow's Red Square had previously been used in a similar mock-up showing Defence Secretary Gavin Williamson, it said.
It added: "Mr Corbyn has been photographed wearing this particular hat and coat many times, and they were not in any way altered or 'Photoshopped' to appear 'more Russian'."
On Friday, left-wing columnist Owen Jones appeared on the programme and told presenter Evan Davis: "The media framing has been a disgrace and I have to say that includes your own programme.
"Yesterday the background of your programme you had Jeremy Corbyn dressed up against the Kremlin skyline, dressed up as a Soviet stooge. You even Photoshopped his hat to look more Russian.
"People should complain to the BBC about that kind of thing."
The BBC actually photoshopped Jeremy Corbyn's hat to make it look more Russian for this smear on Newsnight.— John Clarke (@JohnClarke1960) March 16, 2018
Let that sink in.
The BBC is being used as an anti- #Labour propaganda machine. pic.twitter.com/IFrmhy2wCk
May not be getting a @BBCNewsnight invite ever again, but the way they stitched up the Opposition leader to portray him as the stooge of a foreign power is, ironically, the sort of thing you expect on Russian state TV, and they must apologise in full and unreservedly.— Owen Jones🌹 (@OwenJones84) March 17, 2018
Newsnight's acting editor Jess Brammar defended the show on Saturday on Twitter.
By all means criticise Newsnight. That’s healthy, and we will always welcome people like @OwenJones84 coming on the show to criticise us from our own studio. But no one photoshopped a hat.— Jess Brammar (@jessbrammar) March 17, 2018
"By all means criticise Newsnight," she wrote. "That's healthy, and we will always welcome people like @OwenJones84 coming on the show to criticise us from our own studio.
"But no one Photoshopped a hat."
The BBC has not revealed how many complaints were made.