Lost black mountain bike with blue grips and a small tear on the seat near Thetford Forest trails.

I lost my black mountain bike while biking along the local trails near Thetford Forest in East Anglia yesterday afternoon. It has blue grips and a small tear on the seat. I had stopped for a quick break and accidentally left it without locking it up. If anyone sees it, I would really appreciate if you could let me know. It's quite valuable to me.