28k

How to notify guests about a canceled wedding

Sadly, we have decided to call off the wedding. We sent out the Save The Dates a while ago, and we're going to each notify our own "sides" of the guest list. I can call my friends, but what do I do to notify the distant relatives and parents' friends? I know I need to send something soon because the wedding date is only 3 months away. In this state of mind, I can't think of what to say. Any thoughts?