Beijing police seized more than 200,000 contraband items during security checks of subway passengers last year, and nabbed 280 suspects who tried to use the transportation system, a newspaper reported.

The numbers were released on Sunday by the Beijing Public Security Bureau, the Beijing Evening News reported.

No specific information on the types of contraband was released. Among the items that are prohibited on the subways are kitchen knives, cleavers, and flammable and explosive objects. Matches, cigarette lighters and liquor are limited.