The website of the China's Seismological Society has been hacked on Wednesday amid a controversy over an earthquake drill the day before the Yaan earthquake struck Sichuan.
“You **** Chinese Communist Party!" the hackers, which identified themselves as Anti-Communist Hackers, wrote in a banner on the society's website.
"Paying no regard to people's lives, clearly knowing about the earthquake, you only had a drill and didn't tell people!"
The banner is referring to an earthquake rescue drill in Sichuan for a 7.0 magnitude earthquake, which was held in Sichuan from Thursday to Friday last week.
Immediately after the earthquake, conspiracy theories about the drill spread on micro-blogs.