Prince Charles fears the row over the Rwanda asylum plan will drown out his Commonwealth message when he travels to east Africa next week - after he branded Priti Patel's migrant policy 'appalling'.

The Prince of Wales will represent the Queen when leaders gather in Kigali for the Commonwealth Heads of Government Meeting.

It is due to be the first such gathering he has attended since he was named the next head of the Commonwealth in April 2018.

But the royal is anxious that the row over the Government's Rwanda policy, which intends to take some migrants who cross the Channel on a one-way ticket to the African country, will overshadow his trip.

Risking a major clash with No 10, he is understood to have said that giving Channel migrants a one-way ticket to Africa was ‘appalling’ last week.

A source told The Telegraph that it was 'quite awkward' to be travelling to Rwands for the meeting amid debate over the policy.

Clarence House is aware that Charles may be asked questions about the plan during private bilateral meetings and has not rules out making a reference to it during the trip.

The Prince of Wales will be the first royal to travel to Rwanda and is said to be 'very keen' to focus on challenges faced by the Commonwealth's 54 members.

Another source said it is difficult getting the Commonwealth message to cut through 'at the best of times'.

Charles will be joined by wife Camilla and the couple will attend a number of engagements and a fashion show.

The Daily Mail has learnt there has been friction between the heir to the throne and Boris Johnson, with each grumbling about the other being late for official appointments.

Allegations of tensions between the two men echo reports of the strained relationship between the Queen and Margaret Thatcher when she was PM.

It comes as Priti Patel this week vowed that Rwanda flights will take off within weeks as Cabinet ministers urged her to ignore Strasbourg judges who blocked the plans at the eleventh hour.

The same day as the flight plans were scuppered, Charles hosted an engagement at Buckingham Palace celebrating the contribution of the Commonwealth in the UK.

Lord Woolley of Woodford, founding director of Operation Black Vote, said it was 'very clear' that the Prince of Wales cared about the Commonwealth and would want the conversation 'to be focused around that'.

But he admitted that 'others have got other agendas'.