Law enforcement authorities on both sides of the Taiwan Strait will step up joint efforts to curb financial fraud that targets Chinese citizens, an aviation police officer said Thursday. The statement came one day after Taoyuan prosecutors, in conjunction with some 60 police officers from various agencies, busted two Taiwan-based fraud rings that were duping Chinese citizens into transferring sums of money to bank accounts in Taiwan. The law enforcement agents, in a raid on a residential building in Guanyin township in Taoyuan County, arrested 10 suspects and seized a number of computers, phone handsets, some 10 guidebooks, and several accounting books, according to the police officer. Most of the victims of the phone scams were Chinese citizens who were told by impersonators of China's Public Security Bureau personnel that their phone bills were in arrears and they needed to transfer payments to designated accounts, the police officer said. The files stored on the computers that were seized could yield more information how many Chinese people were defrauded, the officer added. The Criminal Investigation Bureau will collaborate with China's Public Security Bureau to obtain statements from the victims' via video links, the officer said. In another raid, seven people were arrested on suspicion of placing fake employment ads in newspapers and convincing job seekers to open new bank accounts, the officer disclosed. These accounts were later used, in a joint operation by the two fraud rings, to accept transfers from the Chinese citizens who fell for the phone bill story, he added. All of the suspects were referred to the Taoyuan Persecutors Office for investigation, the officer said. 