Prince William.Photo: TOBY MELVILLE/POOL/AFP via Getty Images

Prince William, Duke of Cambridge delivers a speech during The Tusk Conservation Awards ceremony in London

Prince Williamis highlighting a new support network for those on the frontline against the illegal poaching of elephants and rhinos follow a tragedy.

The Duke of Cambridge, 40, issued a plea to help rangers in the wake of themurder of a leading wildlife ranger in South Africalast week.

The Helping Rhinos organization announced last week that Anton Mzimba was shot and killed outside of his home on July 26. “This follows recent death threats and highlights the daily threat facing Rangers,” the organization wrote on Twitter.

The following day, conservation campaignerPrince Williamadded his praisefor Mzimba, who he had spoken with. “I’m deeply saddened to learn of the killing of Anton Mzimba who I spoke to in November,” William wrote. “Committed and brave, rangers like Anton are central to the conservation of Africa’s fantastic wildlife. Those responsible must swiftly be brought to justice. My thoughts are with his family.”

Prince William reiterated how being a ranger “is dangerous work” in a post shared Friday on the official Twitter account he shares with his wife,Kate Middleton. “More than 1,000 rangers have been killed in the last ten years, and they need our support more than ever.”

“Rangers like Anton are on the frontline of conservation, protecting people as well as wildlife. Among many roles, they are teachers, carers and researchers, looking out for a natural world that can’t defend itself,” he continued.

“On the day the challenge was launched, we learnt that Anton was potentially assassinated in his home and his wife severely injured,” William added.

Prince William.Chris Jackson/Getty Images

Prince William, Duke of Cambridge, Royal Patron of Tusk and President of United For Wildlife, enjoys a joke with Edward Ndiritu, Head of Security at Kenyas Lewa Wildlife Conservancy

Tusk is one ofPrince William’s key charities, andhe adopted it in 2005early in his public life after graduating from the University of St. Andrews.

Can’t get enough ofPEOPLE’s Royals coverage?Sign up for our free Royals newsletterto get the latest updates onKate Middleton, Meghan Markle and more!

Prince William, Duke of Cambridge, Royal Patron of Tusk and President of United For Wildlife, accompanied by ranger, Edward Ndiritu, takes a moment to get close to a white rhino and calf at northern Kenyas Lewa Wildlife Conservancy

Queen Elizabeth’s grandson is preparing for a busy fall leading up tohis awards for innovative ideas,the Earthshot Prize, which takes place in Boston in early December.

source: people.com