SHANGHAI, May 10 -- China's Minister of Public Security Guo Shengkun has urged full efforts to ensure security for the Fourth Summit of the Conference on Interaction and Confidence Building Measures in Asia (CICA) to be held here on May 20 and 21.

Guo made the remarks Saturday after he watched a combat drill participated by Shanghai police, who will shoulder the security work for the event.

"The current anti-terrorism situation is grave and complicated, and the security preparation for CICA has entered the final stage," Guo said, urging the police to strengthen real combat exercises and intensify armed patrol.

"Fast and effective responses must be ensured once a major emergency occurs, and the public should be mobilized to join the security efforts so as to form a ubiquitous crackdown on terrorists and foil their plans before they can implement them," Guo said.

CICA was established in 1993 as a forum for dialogue and consultations and promotion of confidence building measures among its members on security and development. It now has 24 member states and 13 observer states and organizations.