A black triangular shaped object was observed while driving down the highway. It flew in a straight line. I was sitting in the passenger seat in the front of the car driving on the highway. While randomly looking at the sky to the right, I saw a triangular shaped object flying high in the sky in a straight line directly over our car. It appeared very high and was difficult to record on my phone due to me sitting in a car. I have provided a picture. The object was very tiny and I was really lucky to have seen it, as it was not big enough to catch your attention. I have witnessed the exact same object while sitting in a garden some afternoon. Exact date was unknown. It was in North-Brabant, Netherlands somewhere between 2016-2019. At that occasion it were around five of these objects closely together flying in the same direction very high in the sky.