I heard an incredible thundering noise 11.50am this morning, 21 April. I ran to the back door to have a look, it was what looked like three fighter jets. They were flying in unison, it was an incredible sight. I only wished I had picked my camera up. A missed opportunity. This was the Runcorn area I spotted them. Did anyone else hear, or see them? More importantly, did anyone manage to get a photo?