Prince Harry has emotionally recalled being unable to understand why mourners' hands were wet following his mother's death.
In a clip from Harry: The Interview, which will be broadcast at 9pm on ITV1 and ITVX on Sunday, the Duke of Sussex speaks about his memories of meeting people following the death of Princess Diana in 1997 when he was 12 years old.
Harry also says that he cried once in the wake of his mother's death - at her burial.