Meghan Markle and Prince Harry have sweetly discussed their son Prince Archie's birthday with a class of students In Nigeria.

The Duke and Duchess of Sussex are in the African nation for a royal-style tour which kicked off with a visit to the Wuse Lightway Academy in the country's capital, Abuja, today.

In one clip from their outing, the couple can be seen sitting on the floor of one the school's classrooms as they meet with school students eager to get to know their royal visitors.

Equally curious are Meghan and Harry who are told by their young guests they are aged 'five', before the Prince goes on to cheerily confirm 'our son Archie is five... the same age as you'.

Their son Prince Archie turned five on May 6 however not much is known about how the Sussexes marked their first child's special day.

Meghan Markle and Prince Harry have sweetly told a class of students that their son, Archie, turned five 'last week' (pictured: Meghan and Harry visit Wuse Lightway Academy in Abuja, Nigeria today)

Meghan Markle and Prince Harry have sweetly told a class of students that their son, Archie, turned five 'last week' (pictured: Meghan and Harry visit Wuse Lightway Academy in Abuja, Nigeria today)

The same day a California party planner caused speculation on Instagram when she shared a special arrangement of balloons with the words 'Happy birthday Archie!' 

But today it seemed the parents to both Archie and his little sister Princess Lilibet, two, were delighted to inform people of the joyous occasion.

Adding to her husband's words, Meghan quipped: 'That's right. He turned five last week!'

The couple appeared to delight in conversation with the youngsters, as they continued on to say 'it's nice to meet you!' 

Meanwhile the Prince extended conversation to various pupils by asking them 'how old are you?'

The Sussexes were visibly in great spirits and on one occasion were filmed shaking hands with schoolchildren.

During the visit, the Duchess looked effortlessly elegant as she bared her back in a sleeveless peach maxi dress from Californian designer Heidi Merrick, which is first thought to have been released in 2018, the year of Meghan's royal wedding to Harry.

Meanwhile, Meghan's royal in-laws are officially titled The House of Windsor, so the gown's name seems fitting considering many observers have noted the similarities between the couple's 72-hour whistlestop visit to Nigeria and a traditional royal tour.

The couple can be seen sitting on the floor of one the school's classrooms as they meet with school students eager to get to know their royal visitors (pictured: Prince Harry shakes a schoolchild's hand)

The couple can be seen sitting on the floor of one the school's classrooms as they meet with school students eager to get to know their royal visitors (pictured: Prince Harry shakes a schoolchild's hand)

The Duke and Duchess of Sussex are in the African nation for a royal-style tour which kicked off with a visit to the Wuse Lightway Academy in the country's capital, Abuja, today

The Duke and Duchess of Sussex are in the African nation for a royal-style tour which kicked off with a visit to the Wuse Lightway Academy in the country's capital, Abuja, today

Meghan and Harry are told by some of their young guests they are aged 'five'

Meghan and Harry are told by some of their young guests they are aged 'five'

Adding a touch of glitz to her ensemble, the mother-of-two sported chunky gold earrings, her AURate collar necklace and an array of dazzling bracelets.

She complemented her outfit with a smattering of glamorous makeup, including a pink lip-gloss, plenty of blush and a smokey eyeshadow look. 

Her hair appeared equally glam, with Meghan opting for a ponytail of soft curls.

Meghan and Harry also donned cultural-style beads which are believed to have been gifted to them during their trip.

She also appeared to sport her beloved $5,500 Ariel Gordon Diamond Hex Tennis bracelet, which was rumoured to be a Valentine's gift from Harry this year.

The stunning 14k yellow gold piece features more than 1.5 carats of diamonds encased in solid gold hexagon-shaped links and is handmade in LA.

She often stacks the stand-out piece on top of her other bling, such as her beloved Cartier Watch, identical to the one her mother-in-law Princess Diana owned.

The Prince cheerily confirmed to a young guest: 'our son Archie is five... the same age as you'

The Prince cheerily confirmed to a young guest: 'our son Archie is five... the same age as you'

The parents to both Archie and his little sister Lilibet, two, were delighted to inform the young pupils of their son's birthday

The parents to both Archie and his little sister Lilibet, two, were delighted to inform the young pupils of their son's birthday 

The Duke and Duchess of Sussex met officials and children at the Wuse Lightway Academy this morning, hours after their arrival in Abuja in the early hours.

Harry spoke to a group of pupils at the school about mental health and referenced when someone has 'lost a loved one in your family and you don't know who to turn to or who to speak to'.

The Duke – who was 12 and his brother William 15 when Princess Diana died in Paris in 1997 - added that there was 'no shame to be able to acknowledge that today is a bad day',

He also told the children: 'You can have it, she (Meghan) can have it, I can have it. They can have it. Every single one of us is likely to have it on any given day.'

The couple flew in together just before 5am following a secret reunion at London Heathrow's VIP Windsor Suite yesterday after the Duchess arrived from Los Angeles.

They both boarded the British Airways overnight flight to Abuja, which was slightly delayed after the scheduled pilot went sick and a replacement had to be scrambled.

The Sussexes, visiting Nigeria together for the first time, were seated in the first class section of the Boeing 777 and were kept apart from other passengers by a curtain.

The couple met with teachers and staff of Wuse Lightway Academy in Abuja, Nigeria

The couple met with teachers and staff of Wuse Lightway Academy in Abuja, Nigeria

The Duke and Duchess appeared to delight in conversation with their guests, and were heard saying: 'it's nice to meet you!'

The Duke and Duchess appeared to delight in conversation with their guests, and were heard saying: 'it's nice to meet you!'

It comes after Harry said it was 'great' to be back in the UK this week to celebrate the 10th anniversary of the Invictus Games. The Duke had been in London since Tuesday to attend events relating to the competition including a thanksgiving service.

Speaking at Wuse Lightway Academy this morning, Harry said: 'In some cases around the world, in more than you would believe, there is a stigma when it comes to mental health.

'Too many people don't want to talk about it, because it's invisible - something in your mind that you can't see. It's not like a broken leg, it's not like a broken wrist, it's something we are still relatively unsure of.

'But guess what? Every single person in this room - the youngest, the oldest - every single person has mental health.'

He said that people had to 'look after yourselves to be able to look after other people, and other people have to be able to look after themselves to be able to look after you', adding: 'That's the way it works.'

The Duke continued: 'And there is no shame to be able to acknowledge that today is a bad day, OK? That you woke up this morning feeling sad; that you were at school, feeling stressed; that you've lost a loved one in your family and you don't know who to turn to or who to speak to. All of these things you may even be led to believe are not for conversation.'

He said the Sussexes were 'here today to tell you that that is not the case'.

During the visit, the Duchess of Sussex, 42, looked effortlessly elegant as she bared her back in a sleeveless peach maxi dress from Californian designer Heidi Merrick

During the visit, the Duchess of Sussex, 42, looked effortlessly elegant as she bared her back in a sleeveless peach maxi dress from Californian designer Heidi Merrick 

The Duke and Duchess of Sussex met officials and children at the Wuse Lightway Academy this morning, hours after their arrival in Abuja in the early hours

The Duke and Duchess of Sussex met officials and children at the Wuse Lightway Academy this morning, hours after their arrival in Abuja in the early hours 

Harry continued: 'Every single one of those things is completely normal, it is a human reaction, whether it's grief, stress, whatever the feeling is. It comes from an experience that you have had - you can have it, she (Meghan) can have it, I can have it. They can have it. Every single one of us is likely to have it on any given day.

'So if you take anything away from today, just know that mental health affects every single person.'

Nigerian defence spokesman Brigadier General Tukur Gusau confirmed today that Harry and Meghan arrived in Abuja early this morning.

They will be meeting wounded soldiers and their families in what Nigerian officials have said is a show of support to improve the soldiers' morale and wellbeing.

Abidemi Marquis, the director of sports at Nigeria's Defence Headquarters, said: 'This engagement with Invictus is giving us the opportunity for the recovery of our soldiers'.

Harry served in Afghanistan as an Apache helicopter co-pilot gunner, after which he founded the Invictus Games in 2014 to offer wounded veterans and service members the challenge of competing in sports events similar to the Paralympics.

Nigeria was among the nations that participated in last year's edition of the games.

The Nigerian military has touted the Invictus Games as one which could help the recovery of thousands of its personnel who have been fighting the homegrown Boko Haram Islamic extremists and their factions since 2009 when they launched an insurgency.

Mr Marquis said: '80 per cent of our soldiers that have been involved in this recovery programme are getting better (and) their outlook to life is positive,'

'The recovery programme has given them an opportunity to improve their personal self-esteem, to improve their mental health and emotional intelligence.'