The Duke and Duchess of Sussex have embarked on a three-day visit to Nigeria, their first as a couple.

The visit follows Prince Harry's recent brief trip to London, where he expressed his pleasure at being back in the UK.

Their visit was at the invitation of Nigeria's chief of defence staff, General Christopher Musa, and includes meetings with injured service personnel.

This visit is part of a series of events connected to the 10th anniversary of the Invictus Games, a sporting event for injured servicemen and women founded by Prince Harry.

The couple arrived in Abuja on Friday morning and commenced their visit with a tour of Lightway Academy, a primary and secondary school in the capital.

Harry and Meghan Markle were welcomed by staff and pupils at Lightway Academy. Credit: AFP

They were welcomed by traditional dancers and had the opportunity to meet some of the primary schoolchildren.

During their visit, the couple launched a two-day mental health summit. Prince Harry will also visit a military rehabilitation center in Kaduna, while the Duke and Duchess are scheduled to visit Lagos.

Their itinerary in Lagos includes attending a training session for Nigeria: Unconquered, a charity affiliated with the Invictus Games, as well as a cultural reception and a polo fundraiser for the charity. Meghan will also co-host an event on Women in Leadership with Dr. Ngozi Okonjo-Iweala, director-general of the World Trade Organization (WTO).

was the surprise guest at a party in London hosted by a charity supporting the bereaved children of military personnel

Following the Duke's celebration of the 10th anniversary of the Invictus Games at St Paul's Cathedral in London on Wednesday, he and the Duchess embarked on their visit to Nigeria.

The Duke was warmly received by a crowd gathered in the sunshine outside St Paul's Cathedral, where he smiled and waved.

The service was attended by his uncle Earl Spencer, Princess Diana's brother. Meanwhile, the King, who is undergoing cancer treatment, met with members of the public at a Buckingham Palace garden party a little over two miles away. However, due to the King's "full programme," the two did not have the opportunity to meet.