Yes it was a nasty crash, I saw it all happen as I was just off the back of the group as I was going straight ahead.
The rest were turning right, it appears there was a clip of wheels and rear derailleur's as the bunch attempted to change lanes, I saw bikes and riders flying into the air well above the heads of the other riders in between.
Glen and Kyle were the worst hurt with both of them being knocked out for a time, not sure if there were any broken bones at this time.