By Victoria Ward The Duke of Sussex's chief of staff has quit after three months. Josh Kettler, who was hired on a trial basis, has left his position in a mutual decision made by himself and the duke. Both sides "agreed it wasn't the right fit", sources said.

Mr Kettler started in the role a week before Prince Harry and Meghan's visit to Nigeria in May . READ MORE: Inside Prince William and Kate's private relationship He also accompanied the duke on his trip to London to mark the 10th anniversary of the Invictus Games . The timing of his departure will be a blow to the Sussexes as it comes just ahead of their four-day tour of Colombia , which begins this week.

READ MORE: Royal accused of threatening to set fire to woman's clothes It also highlights the problems the couple have had experienced in attracting and retaining the right staff. Mr Kettler, who is based in Santa Barbara, California, where the Duke and Duchess live, was hired to "guide (Prince Harry) through his next phase". He was previously chief of staff and head of strategic partnerships at communication platform Cognixion.

He had previously spent more than a decade working for outdoor clothing company Patagonia and then a year at the San Francisco-based Better Place Forests. READ MORE: King Charles' 'frustration' over Archie and Lilibet He describes himself on LinkedIn as "an experienced executive accelerator, organiser and confidant". He is also an avid trail runner, skier and a "steadfast supporter of c.