In reply to mike kann:
The crash came from a rock that my partner pulled off the top pitch of King Kong. We had just done The Burning Giraffe and were exiting the crag via Kangaroo Wall and then King Kong. A big piece of rock came off unexpectedly. I shouted a warning, but it seems that luckily no-one was in the drop zone below! The Spanish/Argentinian/Finnish contingent were on a climb a bit further along. The rockfall was nothing to do with them.