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Three rhinos have been killed in the Kruger National Park since the beginning of the year.
SA National Parks said that the animals were lost in two separate incidents.
Spokesperson Ike Phaahla said a hunting rifle and two sets of horns have been recovered.
Kruger National Park managing executive Abe Sibiya said that a poaching group from Mozambique shot the animals and removed their horns on the 1st of January.