rtokens: He said a 24-year-old Belgian woman left a suitcase containing 13 kg ( 29 lb ) of heroin in a taxi in Barcelona .
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tokens: Police seized dozens of kilos of heroin with a street value of hundreds of millions of Belgian francs , a public prosecutor 's office spokesman in the port city of Antwerp said .
ltokens: Police smashed two drugs smuggling rings and arrested 30 people after a taxidriver in Spain alerted them to a suitcase of heroin left in his cab , Belgian police said on Friday .