10 June 2008
Latest graph on Tangjiashan flow rates:
It is clear that the failure of the dam is now very rapid and is uncontrollable. It is essential that anyone in a vulnerable location downstream is evacuated immediately. It appears that the workers on the dam have been successfully pulled off the site by helicopter, which is a relief.
Update: Correspondent Andy is now reporting that cracks have been observed on the dam, which suggests that it is failing internally.