With just days to go, Coronation organisers say they are in the dark over Prince Harry’s plans

The coronation organizers are “stressed out” about Prince Harry’s plans for Saturday, complaining that setting them up is “like trying to communicate with Mars.”

Insiders told The Mail on Sunday they are still seeking confirmation of “when he’s coming, where he’s staying, when he’s going back and whether he’s happy with his sitting position in the abbey.” Some even suspect that he would pull out at the last minute.

This newspaper revealed in February that the organizers were operating on the basis of a ‘Harry in a hurry’ performance by the prince – that he would visit without his wife Meghan in a flash – which was confirmed earlier this month.

The Duchess of Sussex will remain in America on the day of the coronation, where she will celebrate their son Archie’s fourth birthday.

But sources say they’ve been told so little about Harry’s plans that “anything could happen,” ranging from a token appearance to a last-minute no-show.

A riot broke out last week after Michelle O’Neill, the vice president and leader of Sinn Fein in Northern Ireland, accepted an invitation to the coronation.

A source said: ‘He hasn’t responded other than in a “We acknowledge your email” tenacious manner. It’s like trying to communicate with Mars – it was easier dealing with Sinn Fein.”

A riot broke out last week after Michelle O’Neill, the vice president and leader of Sinn Fein in Northern Ireland, accepted an invitation to the coronation.

Meanwhile, Lady Pamela Hicks, a maid of honor to the late Queen, and whose father Lord Mountbatten was killed by the IRA – of which Mrs O’Neill’s party was the political wing during the Troubles – was dropped from the list.

Ms O’Neill, who attended the Queen’s funeral in September, said she accepted the invitation on behalf of the people of Northern Ireland “for whom the coronation is a hugely important occasion”.

But it sparked a backlash from Unionists, who said they were prevented from celebrating by Nationalist-controlled councils in Ulster.

Last week, Harry continued his battle with the British press when he claimed the late Queen and King Charles were complicit in covering up phone hacking by making a deal with the publisher of the Sun and the News of the World .

But the Supreme Court judge hearing the case, Mr Justice Fancourt, said there appeared to be “factual inconsistencies” in Harry’s legal claim that he was a victim of hacking.

The Coronation source added: “Harry seems to be taking a High Noon approach, making everyone sweat over his moves.

While the Royals are confident he will show up, others involved aren’t so convinced.

“The common assumption now is that, assuming he comes, it could mean arriving very early on a private jet on Saturday and leaving late afternoon on the same day.”

The Duke of Sussex’s representatives did not respond to a request for comment.