SIGHTING REPORT UFO sighting at Folkestone, UK

There were two strange sightings so I'll describe both - im not sure if they're related. My parents were relaxing outside after work and I joined them around 11pm. My Dad told me he had just seen a pitch black object about the size of an adult thumb at arms length move across the sky. The sky had an grey tint to it and the object moved quickly - taking 5 seconds or so to go over, obscuring the background glow and stars as it moved, and made no sound. A few minutes later all of us saw something else. It was a triangle of red lights with another red flashing one. It took a minute or two to travel the 90 degrees of visible sky. Compared to the other ones around at that time of night it was very slow. It made no sound - was at hugh altitude. It wasn't the standard red an d white lights flashing and obvious winged shape that you see of commercial airliners. I'm not sure if it was a military plane, or something related to the first sighting so am reporting it too. My dad described the first object as "In Star Trek language - it was something under a cloaking device. It was pitch black against the grey background".

It blacked out an area of the sky as it moved.