Today i was coming up to check the construction site at the underground town project, connected to my other town Aqua Valley. I noticed, while preparing everything to continue the excavation, i had been griefed. I took some snapshots of what has been edited:

http://postimage.org/gallery/d9dy9ya/7be1df88/ - Link to the snapshots

Thanks

PE Number: #11736

from the screenshots it doesnt look like much looks like someone had an efficency V pick and clicked a couple of times

and it does kinda just look like a mine...

they took powered railtracks, torches, regular rails, redstone, but the player has been banned now, so if a mod dont mind to lock this threat i wont mind