On the early hours of the morning of the 21st of May, I was coming out of Asda's (supermarket) and I noticed in the corner of my eye a strange flash. In which led me to look at a remarkable object within our atmosphere. The best to describe the object would be kind of a jagged star with vapour trails behind it. I've seen many meteor showers and shooting stars in my time, and this was something else. I've seen many strange sightings in the sky, but this was different. The UFO was travelling at a very fast speed with no sound from my left to right heading towards Grimsby Police Station. Soon as i got a glimpse of the object just vanished out of sight. I t was DEFINITELY not a Helicopter or conventional aircraft. I'am very interested in Ufology and not really noticed many sightings like mine. Not like the typical saucer or cigar shape. Didn't feel any emotions apart from WOW!! Didn't loose any of time while observing the object. Thanking You *(Wit's name deleted--CMS/sg).