Harry opens up on what gives him hope as he begins week of engagements without Meghan

Taking to the stage, Harry told the audience: "I applaud you for having the confidence to be on this stage. I know my mother would be incredibly proud of you guys.

"Your activism is true to how my mother lived her life."

The Duke also discussed what gives him "hope" for the future.

He said: "I have said it before years ago and I'll say it again.

"The younger generation is what gives me hope. The courage you have gives me hope.

"Everyone of us needs courage to move the dial in this world, probably more than ever.

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"We need to listen and act on what you say because it is your future that will be stolen and that is unacceptable."

He was joined on stage with Chiara Riyanti Hutapea Zhang from Indonesia and Christina Williams from Jamaica, who received The Legacy Award in memory of Diana, Princess of Wales.

Harry arrived in New York on Sunday when he attended a dinner organised by the World Health Organisation.

The Duke rubbed shoulders with famous guests, including Queen Mathilde of Belgium and Belgian Prime Minister Alexander De Croo at the glitzy dinner.

His eight-day trip will see Harry making appearances with African Parks and The HALO Trust.

The Prince will also further the work of The Archewell Foundation, which he co-founded with Meghan.

This weekend, Harry is expected to fly to London for his annual visit to support WellChild at their awards ceremony.