PRAGUE (AFP) - Supermarket staff in two Czech cities found bars of cocaine inside banana boxes on Friday (June 10), police said as media put the total amount at half a tonne.

Czech public TV said the boxes that had been shipped over from Colombia contained half a tonne of cocaine in total.

"Detectives found out that goods from the same batch were also distributed to several other places," police said in a tweet, adding they were searching these places.

Public TV added that the drugs, found in the Czech cities of Jicin and Rychnov nad Kneznou, would be worth 1.5 billion koruna (S$88 million) on the black market.

Police said the national drug squad was probing the haul and that they would ask for international cooperation.