Three warehouses storing 20 tons of counterfeit drinks have been shut after a joint crackdown by police and law enforcers from local commercial and industrial bureau in Shijiazhuang city of Hebei province on Wednesday, the Hebei Youth Daily reported.

Police officers?check the amount of counterfeit drinks at a warehouse in Shijiazhuang, North China's Hebei province, July 20, 2011. [Photo/Hebei Youth Daily]

After receiving tips from a beverage enterprise on July 19, police officers raided a food market near the warehouses the following morning and succeeded in catching a worker who was about to open a door to one of the warehouses.

Stocks of 4,500 boxes of fake beverages, many of which bore brand names like Coca-Cola, Wahaha and Jinmailang, were found in three warehouses.

The police also discovered large amounts of fake instant noodles there.

"These counterfeit products look highly genuine at first sight," a technician said.

Though all the beverages and foods have been confiscated in the raid, the city's largest crackdown on counterfeit goods this year, the owner of the warehouses hasn't been found, which means the intended market for the counterfeit goods and who produced them remained unclear.