Scottish Liberal Democrat MSP Alex Cole-Hamilton said:
"Alex Salmond sought to cast doubt on the role of the Russian Government in a heinous poison attack on British soil. He did so while a message ran along the bottom of the RT screen discrediting the investigation.
"Given the overwhelming evidence suggesting that this attack was conducted by Russian intelligence, it is abhorrent that the former First Minister is still taking part in a weekly show on Putin's propaganda channel. End this Trump-like apologism for Putin’s Russia.
"His next broadcast should include an apology to the Skripal family or even better, his resignation from Russia Today. He has embarrassed Scotland for long enough."