A flying orange light at dusk moving southwards. It stopped for a while before moving up and disappeared in the pale blue dusk sky.I’m reporting from Mauritius. I was driving back home from work. The sky was clear except for few passing isolated clouds. It was almost dusk. While driving I saw an unusually orange light. The time was 18:40 and it was not completely dark. The intensity of the light, its color, its size (too big to be a commercial airplane) were the reasons that attracted my attention.I slowed the car and continued to follow the light while driving. It was flying to the south and seemed to be growing bigger. At that moment I thought that it must be a commercial plane or a helicopter but still the shape, color, size and intensity of this orange light puzzled me. I stopped the car as I wanted to see the shape of this unusual aircraft as it was almost flying above me by then. But despite the proximity it was with me I could not distinguish any shape behind the light. I would estimate the height of the object at that moment to be about 700m high.At that moment the flying object stopped, which made me believe that it was a helicopter but again strangely I could not see the shape not hear the sound of a helicopter. The flying object then began to move slowly upwards and then started to climb at a higher speed. It finally disappeared without any noticeable sound in the now pale blue sky within 3-4 seconds after starting to move up.