Leaders and top officials from more than 50 nations are gathered in Seoul for the 2012 Nuclear Security Summit, along with representatives of international organizations including the UN and the International Atomic Energy Agency.

Chinese President Hu Jintao delivered a speech, explaining China's position, efforts made and important measures taken in the nuclear field. He also outlined a four-point proposal for securing a safe world with nuclear security. [Xinhua]

The topic for this summit is Beyond Security, Towards Peace. Tuesday morning's plenary session was hosted by South Korean president Lee Myung Bak. The topics discussed were nuclear security measures and international security cooperation.

Chinese President Hu Jintao delivered a speech, explaining China's position, efforts made and important measures taken in the nuclear field. He also outlined a four-point proposal for securing a safe world with nuclear security.