BEIJING, April 18 (Xinhua) -- A nationwide summer campaign against drugs will start in May, according to the Ministry of Public Security (MPS) on Wednesday.

The China National Narcotic Control Commission will examine and evaluate areas with drug problems and closely watch over them in the second half of the year, it said.

Departments across the country should analyze their local situations, and come up with targeted measures against drug crime, said Liu Yuejin, deputy director of the commission, during a video conference.

Collaboration between departments and police forces should be strengthened, Liu said.