Five men have been arrested in Shenzhen over the kidnappings of two Hong Kong truck drivers this month. Shenzhen police deputy head Yu Xinguo said a sixth suspect was still at large. 'The men are in their 20s and 30s and they come from Henan , Hubei , Chongqing and Shenzhen,' Mr Yu said, adding that the suspects were believed to have been involved in both abductions. Drivers Law Suk-yu, 52, and Chan Kai-hin, 55, were kidnapped in separate incidents on June 3 after parking their vehicles at the Huanggang border crossing and getting into unlicensed taxis. Mr Law was robbed of $6,000 in cash and released on June 4 after his family transferred $80,000 into his Shenzhen bank account to secure his freedom. Mr Chan was robbed of $20,000 and released on June 5 after his family remitted $70,000. The kidnappers initially demanded a ransom payment of 100,000 yuan for each man. They were arrested in Futian district on Friday. Mr Yu said this was not the first time that Shenzhen police had cracked a case involving unlicensed taxis.