In a simple tweet, Walker simply replied with an emoji, following a feud over ratings.
He then added another tweet, in which he jokingly invited Morgan to discuss his departure on BBC Breakfast.
Sorry to hear the news about your departure from GMB @piersmorgan
If you'd like to come on the UK's number 1 breakfast show to talk about it... we could make some space for you in the morning :thumbsup:
- Dan Walker (@mrdanwalker) March 9, 2021
Walker had commented on Piers' recent behaviour in an earlier tweet, in which the pair locked horns over their shows' ratings:
I'm surprised BBC bosses didn't storm in and drag you off set after yesterday's ratings came in. https://t.co/q3ip93hpTW- Piers Morgan (@piersmorgan) March 9, 2021
It was confirmed this evening (9 March) that 55-year-old Piers would be leaving the morning breakfast show, which he co-hosts with Susanna Reid.
Following this morning's explosive show, that saw Piers walk off set, the news was confirmed by ITV in a statement.
It read: "Following discussions with ITV, Piers Morgan has decided now is the time to leave Good Morning Britain.
"ITV has accepted this decision and has nothing further to add."
It follows a period of controversial behaviour from Piers, who has recently been criticised for comments made against Meghan Markle.
On yesterday's show (8 March), Morgan said he had been left 'sickened' by Markle and Prince Harry's interview with Oprah Winfrey and said he 'didn't believe a word' that Meghan had said, adding: "I wouldn't believe her if she read me a weather report."
The comment drew criticism from mental health charity Mind, especially following Meghan's admission that she had experienced suicidal thoughts.
In a statement, the charity said: "We were disappointed and concerned to see Piers Morgan's comments on not believing Meghan's experiences about suicidal thoughts today.
"It's vital that when people reach out for support or share their experiences of ill mental health that they are treated with dignity, respect and empathy.
"We are in conversation with ITV about this at the moment."
This morning (9 March), Morgan stormed off the Good Morning Britain set after getting into a clash with colleague Alex Beresford, who criticised Morgan's comments about Markle from the previous day.
Beresford branded Morgan's behaviour 'diabolic'.
Featured Image Credit: BBC