A row got so heated on Good Morning Britain that Piers Morgan had enough and walked off set – and he wasn't even involved.

Months after the shock EU referendum result, MPs will vote on the Brexit bill today – to allow Theresa May to trigger article 50.

Proving there is plenty of passion on both sides are Conservative MP Iain Duncan Smith, who campaigned to leave the EU, and Labour MP Peter Kyle, who says he'll vote against the government's Brexit bill.

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They joined the show to debate the vote – but as their differing opinions mounted and the debate escalated out of control, Piers and co-presenter Susanna Reid jokingly walked off.

Piers joked: "Wow, I thought I was noisy in the morning."

"I've never heard you be so quiet in a debate," Susanna added.

From Digital Spy.

From: Digital Spy