Jeremy Hunt has hit out at his fellow Tory leadership candidate after Boris Johnson called on him to commit to leaving the EU on October 31.
Mr Hunt said he would give “full and frank answers” if the former foreign secretary decided to attend a televised debate set up for the remaining leadership contenders.
A Sky News debate that was expected to go out on Tuesday night was cancelled after Mr Johnson refused to appear.
Writing on Twitter, Mr Johnson shared a letter demanding Mr Hunt commit to leaving the EU on October 31 - with or without a deal - after the former Mayor of London said he would deliver Brexit “do or die”.
Mr Hunt responded to the tweet on Tuesday, saying: “Why not turn up to Sky tonight and I’ll give you full and frank answers?”
The former foreign secretary also took a dig at Mr Johnson’s letter describing it as “snail mail”.
In his letter, Mr Johnson wrote: “For my part, I have been clear that, if I am elected leader, we will leave on 31 October with or without a deal.
“Will you join me in this commitment to leave on 31 come what may?”
He added: “Leaving on 31 October - with no ‘ifs’, ‘buts’ or ‘maybes’ - is the only way to restore trust in our democracy.”
Earlier on Thursday, Mr Johnson had told talkRADIO that he would deliver Brexit on October 31 "do or die".
“I think a bit of positive energy would help, frankly. I've never seen such morosity and gloom from a government,” he added.
“For three years we've been sitting around wrapped in defeatism telling the British public that they can't do this or that. It is pathetic, it's absolutely pathetic.”