2 UFO flying weirdly over Irish Sea in strange manoeuvre disappearing and reappearing

Whilst outside I saw in a clear night sky, 1 bright object travelling NE to SW past Blackpool over the Irish Sea. It was a circular object with a white pulsating light. Travelling around 2x the speed of a normal commercial plain with no red flashing lights I estimated travelling well above the normal flight of traffic but well below any satellite I watched it for a minute or 2 thought that’s strange then went inside got my camera phone out. It then disappeared, then reappeared joined by another and disappeared. 1 minute lates reappeared did impossible manoeuvres and disappeared again. As if went in to a portal