China's police chief Meng Jianzhu Saturday called for nationwide coordination to beef up security for the Shanghai World Expo, which runs from May 1 to Oct. 31.

Meng, a State Councilor and Minister of Public Security, made the call in a inspection tour to Suzhou city in Shanghai's neighboring province Jiangsu, where he urged police in Shanghai and its adjoining provinces to execute more security efforts.

He asked the police in Shanghai, the provinces of Jiangsu and Zhejiang to fully recognize the challenge and complexity of the security work, and to speed up the building of a coordination mechanism among them.

Security departments must step up efforts to detect and remove all kinds of security threats, be fully prepared for challenges, and minimize the affect of the security work on people's lives, he said.