hazard

Hi! Thanks for replying. Can you see the picture I added to my original post? There isn't any sort of sheath on the copper. It's literally a silver metal pipe with 2 bare copper wires in it.

Today whilst putting up shelves in my kitchen, I drilled through a pipe.... Luckily I didn't drill the entire way through. It was really soft metal and I just assumed it was maybe a bit of wood, or some brick behind the plaster. I should've looked. Ooops! Spoke to my dad and he thought maybe it was a old electicity cable by the way I described it, but said I should get it check out or buy one of those screwdrivers that checks whether something is live or not. There were no sparks, but then I didn't cut through the copper cables, though I think I nipped ones of them as there is a small scratch on it. The pipe is about 1cm wide and the copper cables (two of them) are perhaps the width of a matchstick. I'm really concerned it might be live, can someone tell me what I should do. at the moment, I just have a bit of gaffa covering it! Here's a picture.