Prince Harry marks ANZAC Day by laying a wreath

Prince Harry played a wreath at Wellington Arch in London to mark the start of ANZAC Day commemorations on Monday morning (Apr. 25). The 31-year-old attended the dawn service, which marks a century since the UK first observed the day.

Crowds had gathered in the early hours for the service, which took place at Hyde Park Corner. Dressed in a smart black overcoat with his army medals proudly pinned into place, Harry appeared sombre as he laid the wreath in honour of the New Zealanders and Australians who died at war.

TAP TO VIEW GALLERYPrince Harry honouring fallen soldiers of New Zealanders and Australians Prince Harry laid a wreath at Wellington Arch, London

The Prince will later attend a parade at the Cenotaph in Whitehall, where he will lay a wreath on behalf of the Queen. Harry will also attend a service of thanksgiving at Westminster Abbey.

Anzac Day has been commemorated in London since the first anniversary of the Anzac landings at Gallipoli in 1916, when King George V attended a service at Westminster Abbey.

In 2015 Harry was joined by his father Prince Charles to honour the centenary of the Gallipoli Campaign in Turkey. The pair were joined by New Zealand Prime Minister John Key and Australian Prime Minister Tony Abbott as well as other world dignitaries for the ceremony at the Gallipoli Peninsula.

Prince Harry in uniform with army medals Harry appeared sombre as he marked ANZAC Day in London

Prince Harry's outing comes less than 24 hours after he joined forces with his brother and sister-in-law the Duke and Duchess of Cambridge, née Kate Middleton, to support the Heads Together charity campaign. The trio spoke about the importance of ending stigma about mental health in a video for the campaign.

Kensington Palace's Twitter account posted a photo of the trio in good spirits as they sported bright blue headbands for the cause. The photo was captioned: "Let's get our #HeadsTogether to change the conversation on mental health."

They then announced that the campaign will work with mental health charities and be supported by the royal foundation, writing: "@heads_together will work with inspiring mental health charities and be supported by #RoyalFoundation."

HELLO! Canada magazine is available for your tablet and smartphone. Get HELLO! Canada, PEOPLE, Vanity Fair and over 100 more of the world’s best magazines for one low monthly price at Texture by Next Issue. CLICK HERE to sign up for a free trial.