The Duke and Duchess of Sussex have become parents, welcoming their firstborn child, a son, on the early morning of 6 May, according to the statement posted on the Sussexes' official Instagram account.

"Their Royal Highnesses' son weighs 7lbs. 3oz". (3.2 kg," the post goes on.

According to the happy newly-minted Dad Prince Harry, the boy is "healthy and absolutely to die for." He says he is "just over the moon" about the infinitely happy moment.

"The Duchess and baby are both healthy and well, and the couple thank members of the public for their shared excitement and support during this very special time in their lives," the statement reads, adding updates will follow shortly, in the coming days.

Queen Elizabeth's grandson, 34-year-old Harry, and Meghan, aged 37, a US-born former actress, married in a lavish ceremony at the monarch's Windsor Castle in May last year, and in January, Meghan Markle confirmed her pregnancy, however without detailing her due date.

The newborn baby is the eighth great grandchild of the 93-year-old queen, the world's longest-reigning monarch, and could be entitled to hold joint British and American citizenship according to nationality rules.