http://uk.news.yahoo.com/22122005/325/toxic-slick-heads-south-china-cities.html is a link to a Reuters news story about a toxic heavy metals spill into the North River in the southern Chinese province of Guangdong.
This is the second spill in the last few month, or at least the second spill that we know about. There was a large spill of benzene and other related chemicals from a chemical factory in one of the northern provinces earlier this year.
On a side note, even though this a Reuters story, I am using the Yahoo! link for it since Yahoo’s new service uses URL’s with descriptive names (unlike Reuters).