TV presenter Rachel Riley hit back at BBC Newsnight host Kirsty Wark, as she condemned supporters of Hamas.
Appearing on the show, Riley defended the "right to freedom of speech" but criticised those who support terrorist organisations such as Hamas.
This follows a series of pro-Palestinian marches across the UK, after Hamas inflicted serious conflict in Israel, killing thousands of civilians.
In London, a TfL tube driver has been suspended by the network, for encouraging pro-Palestinian chants on the train.
Rachel Riley said 'everyone has a right to free speech'
BBC
The Metropolitan Police have also been criticised for their approach to tackling extremist protesters in the capital.
Commissioner Sir Mark Rowley said in defence of their efforts that "laws around extremism and hate crime should be redrawn".
Rowley added: "It’s our job to enforce that line. It’s Parliament’s job to draw that line.
"And the thought that maybe events at the moment … maybe some of the lines aren’t quite in the right place."
Discussing the marches and supporters of Palestine on BBC's Newsnight programme, host Kirsty Wark was joined by presenter Rachel Riley.
Wark asked: “Do you accept that people who support the Palestinians and feel strongly about their plight have a right to march and have a right to freedom of speech in this situation?”
Riley replied: “Of course everyone has a right to freedom of speech. They don't have a right to support terrorism.
“Hamas is a designated terrorist organisation in the UK. It's designated by most Western Governments, most decent governments, so to support Hamas is illegal against the Counter Terrorism Act."
Kirsty Wark and Rachel Riley clashed on the right to free speech
BBC
Riley continued: “Supporting Hamas in support of the Palestinian people is equivalent to supporting the Taliban in support of Afghans.
"It's incompatible with their freedom, with being able to live their lives peacefully, which is well, any decent person on the planet wants."
Wark attempted to hit back against Riley, arguing: “In a way, what I would say to that as well is, of course, that many Palestinians do not support Hamas.”