Sir Alan Duncan is answering an urgent question about the resignation of Sir Kim Darroch, the UK ambassador to the US, in the wake of leaks of his confidential memos criticising the Trump administration.
The foreign office minister says Sir Kim served with the utmost distinction and declared the leak of his comments “an outrage”.
He says the tributes paid to Sir Kim are fitting and rightly deserved.
Pat McFadden, the Labour MP who secured the urgent question, said it is a “dark day” for the UK and condemns the lack of mature leadership from Donald Trump.
He condemns Boris Johnson for “an appalling abandonment” of Sir Kim, adding, “real leaders protect their people, they do not throw them to the wolves”.
He said these actions were a “chilling warning” of what is to come under Mr Johnson in Downing Street.