South Korea will announce on May 20 the results of its investigation into the explosion and March 26 sinking of the navy corvette ChonAn (772). South Korean media has been full of leaks from defense and government officials indicating that all evidence points to a North Korean torpedo being responsible for the sinking. Seoul has been cautious about laying the blame formally on Pyongyang until it had enough evidence and intelligence to clearly link the explosion to North Korean actions, as South Korean officials wanted to ensure Chinese cooperation with whatever punitive actions result from the investigation. Seoul has already begun sharing its findings with allies and other key countries involved in the North Korean issue.