the santa rosa flights helicopter lifted off just before dusk from the city of oviedo en delivery to simon bolivar international airport outside the capital county of caracas . noel marquez , chairman of caracas ' s emergency management agency in merida , stated the plane has tried to hit control towers . internal service chief general antonio rivero told reporters that it is uncertain whether or not the plane crashed or is simply missing .
A plane with 46 passengers has not contacted control towers.