GABORONE Three New Zealanders and one Australian died late on Tuesday when their plane crashed in Botswana, aviation authorities said on Wednesday. Director of civil aviation Tsegye Masheshe said the light aircraft went down near the northern tourist center of Maun on the edge of the Okavango Delta. "The Cessna 206 was coming in to land when it lost altitude. The dead are three New Zealanders, one Australian and the pilot," Reuters quoted Masheshe as saying.