On April 20, 2012, Global Times reported that, given the background of the recent conflict with the Philippines, the South China Sea Fleet of the Chinese Navy is reportedly having much more activity in the region. The Chinese Navy is improving the underground ammunition repository and new construction is being completed. Also, at least one of the three 094 nuclear submarines based in the Sanya Naval Base is leaving the base for the South China Sea patrol. Both the President and Defense Secretary of the Philippines recently called for taking a firm stand against China.
Source: Global Times, April 20, 2012
http://mil.huanqiu.com/Observation/2012-04/2642808.html