As Prince William and Kate Middleton head to Jamaica, the latest stop in their Caribbean tour to celebrate Queen Elizabeth’s Platinum Jubilee, the Independent reports that a protest calling for slavery reparations has been scheduled for the day of their arrival at the British High Commission in Kingston. Organized by Jamaican human rights coalition Advocacy Network, the protest will also call for an official apology for the “British crimes against humanity.”

Advocacy Network has also penned an open letter demanding that the British monarchy pay reparations. According to CTV News, the letter was published on Sunday and has been signed by 100 Jamaican leaders.

“We will not participate in your Platinum Jubilee celebration!” the letter states, People reports.

“We see no reason to celebrate 70 years of the ascension of your grandmother to the British throne because her leadership, and that of her predecessors, have perpetuated the greatest human rights tragedy in the history of humankind,” the letter goes on to explain.

The letter also describes the aforementioned crimes against humanity in more detail, and states that the nation is owed an apology.

“We are of the view that an apology for British crimes against humanity, including but not limited to, the exploitation of the indigenous people of Jamaica, the transatlantic trafficking of Africans, the enslavement of Africans, indentureship and colonisation is necessary to begin a process of healing, forgiveness, reconciliation and compensation,” the letter reads.

According to The Independent UK, the royals plan to pay homage to the Caribbean nation’s music and sporting culture during their trip. Usain Bolt may be involved, and Prince William and Middleton will take a moment to celebrate Bob Marley’s legacy. However, some Jamaicans are not pleased with the latter plan.

“As a Rastafarian, Bob Marley embodied advocacy and is recognized globally for the principles of human rights, equality, reparations and repatriation,” the letter states.

Rastafarian High Priest Wesley Kelly is one of the many Jamaican leaders supporting the outcry over the royals’ visit, the Independent reports.

“We the Rastafari sons and daughters need our compensation from the British monarchy,” he said in an interview with the UK outlet. “Our people remain enslaved under this so-called independence system.”

Prince William and Middleton have faced backlash throughout their tour. While in Belize, People reports that the royals had to cancel a trip to a cocoa farm in the Maya Mountains after locals protested colonialism. A few protesters held signs that read “Prince William leave our land.”

The protests come amid Caribbean nations starting to cut ties with the British monarchy. According to People, Barbados became a republic back in November. Prince Charles, heir to the British throne, was present as the country officially removed the queen as its head of state.

“From the darkest days of our past, and the appalling atrocity of slavery, which forever stains our history, the people of this island forged their path with extraordinary fortitude,” Prince Charles said.