A large (football sized) block has come off the Orgy of ruin at Frogsmouth quarry in Cheshire. Link below.
http://www.ukclimbing.com/logbook/c.php?i=195048
The block was on the arete, level with the last bolt before the lower off. All of the surrounding rock seems sound (for soft sandstone) however it seemed ok moments before it came off.
Anyone climbing in that area just be aware that there may be more loose bits to follow.
I'll post a photo later on tonight.