Two triangular shaped craft accompanied by loud roaring sound seen traveling west to east.

At approximately 03:00 I was awoken by an extremely loud, deep roaring sound from outside (similar to the sound of a rocket launch). Upon rushing outside I saw two bright white flashing lights traveling from west to east over my yard. My wife arrived a few seconds later and remarked that the objects had 3 small white lights on the corners as well as the center flashing light. I didn't notice this as I didn't have my glasses on. We watched the objects till they reached the horizon with the noise still audible even after they were out of sight. We returned to bed after they were out of sight at 03:05.