BEIJING -?Police in South China's Guangdong province have seized 28 people suspected of printing counterfeit renminbi, the Chinese currency, and confiscated notes worth 210 million yuan (32.9 mln U.S. dollars), the police announced on Thursday.

Police busted two underground dens making fake cash in Huizhou City on Sept. 17 and destroyed four printers, said Huang Shouying, head of economic crime with the provincial public security department.

The printing machines were hidden in a hardware factory and a waste recycling center, he said.

None of the fake money went into circulation, he said.