LIMA, Jan. 1 (Xinhua) -- The Bolivian anti-drug task forces seized some 431 tons of drugs in 10,400 operations throughout 2007,arresting 4,178 suspects, according to news from La Paz.

    The drugs included 17 tons of cocaine and 413 tons of marijuana, said an announcement released Tuesday by the Bolivian government.

    Last year, the forces destroyed 3,925 drug factories and 6,296 drug pools, confiscating some 1,651 tons of coca leaves used to produce drugs, the announcement said.

    Bolivia, located at a drug producing area known as "the Silver Triangle" in South America, is the world's third largest coca producer, after Colombia and Peru, with an annual output of 200 tons of cocaine.