Looking for a protection plugin which can protect circular areas

So I want to protect a circular area on my server but I'm unable to do it with worldguard as I don't think it's possible and I'm unable to find any other plugins which can do so.
Anybody know of any plugins that I can use to protect a circular area?

 

bump

 

izone

 

I'm sure you can find something here http://plugins.bukkit.org/curseforge/#ti=&ta=anti-griefing-tools&au=&pno=0

And WorldGuard probably supports circular areas.

 

WorldGuard does support circular areas

 

I tried making a circular selection with worldguard, and i did //sel cyl, then selected the area, then tried to make a region and it said something like "You must make a selection with worldedit first!"

 

yeah you have to select each corner of the circle so you right click then left click a bunch of times.