Duke and Duchess of Cambridge Prince William and Kate Middleton met Prime Minister Imran Khan on Tuesday.

The couple — who are the first royals to officially visit Pakistan since Prince Charles and his wife Camilla visited the region in 2006 — were received by the premier at the Prime Minister House, where a lunch was hosted in honour of the guests.

William's late mother, Diana, was a friend of the prime minister and visited Pakistan twice — 1996 and 1997 — to help raise awareness and funds for the Shaukat Khanum Memorial Cancer Hospital.

Prior to meeting the prime minister, the couple was welcomed by President Arif Alvi and his wife Samina Arif at Aiwan-i-Sadr.

Middleton, who earlier donned a royal blue kurta, changed into a green and white ensemble for the formal receptions.

The royal couple was accompanied by Thomas Drew, the British High Commissioner to Pakistan; Simon Case, the Principal Private Secretary to the Duke; and Christian Jones, the Communications Secretary to the Duke and Duchess of Cambridge.

The president commended the visiting dignitaries for their endeavors to raise awareness about mental health, climate change, and poverty alleviation, said a press release by the president's secretariat.

The Duke of Cambridge thanked the president for the warm welcome and hospitality extended to him and his entourage. The royal couple appreciated the initiatives undertaken by Pakistan's government to combat climate change and to alleviate poverty, added the statement.

Visit to school, Margalla Trail 5

Earlier in the day, the couple kicked off their engagements on the second day of their five-day trip to Pakistan with a visit to the Islamabad Model College for Girls, University Colony on Tuesday morning, where they interacted with the staff and students and visited classrooms.

The Duke and Duchess of Cambridge, who are strong advocates of girls’ education, were greeted by teachers and children on their arrival at the school.

Clips shared by British media show one of the schoolgirls telling William that "they were fans" of his mother, Diana, Princess of Wales. "That's very sweet of you. I was a big fan of my mother too," he replied with a smile.

After their visit to the school, they arrived at Trail 5, Margalla Hills to attend an event regarding environmental protection. Strict security arrangements were made prior to their arrival.

"In the Margalla Hills, which sit in the foothills of the Himalayas, the Duke and Duchess of Cambridge joined children from four local schools, taking part in activities designed to educate young people on environmental protection and wildlife conservation," said Kensington Palace on Twitter.

Red carpet welcome

The Duke and Duchess of Cambridge arrived in Islamabad on Monday night and were received by Foreign Minister Shah Mahmood Qureshi and his wife Mehriene Qureshi at the Nur Khan Airbase. British High Commissioner in Pakistan Thomas Drew was also present on the occasion.

Excitement built up ahead of their arrival, with ‘#RoyalVisitPakistan’ trending on Twitter and television stations airing footage from historic royal visits, including one by Prince William’s grandmother Queen Elizabeth in 1961.

Some rickshaw drivers in Lahore and Rawalpindi, a garrison city next to Islamabad, painted their vehicles with the Pakistani and British flags.

The five-day visit, which will end on October 18, has been organised at the request of the United Kingdom’s (UK) Foreign and Commonwealth Office.

According to a handout from Kensington Palace, the British royal couple will visit Islamabad, Lahore, Gilgit-Baltistan and rugged border regions to the west. The visit will span over 1,000 kilometres, and will take in Pakistan’s rich culture, its diverse communities, and its beautiful landscapes, the handout said.