Shenzhen and Hong Kong leaders are expected to discuss the joint development of a 100-hectare border zone during Shenzhen Mayor Li Hongzhong's four-day visit to the city. Mr Li arrives in Hong Kong today and is to meet Chief Executive Tung Chee-hwa tonight. Mainland media reported yesterday that Shenzhen authorities suggested developing a site next to the Shenzhen River into a free-trade zone. Le Zheng, director of the Shenzhen Academy of Social Sciences, proposed making it an area where mainlanders and Hong Kong people would enjoy visa-free access and both the yuan and Hong Kong dollar could be used freely. The Hong Kong government has suggested turning the site - about the size of Tsim Sha Tsui - into a trade and exhibition zone, with visa-free access for mainland and overseas visitors and Hongkongers. Some manufacturers in Hong Kong have urged the government to set up a cross-border industrial zone on the site. The 22-strong Shenzhen delegation, including four vice-mayors, will focus on strengthening links with Hong Kong in areas such as commerce, technology, education and tourism. The cities' leaders are expected to sign agreements on cross-border co-operation. Tang Gang, director of the Southern China and Hong Kong-Shenzhen Economy Research Centre under the China Development Institute, said the two cities should join forces to promote their strengths in logistics, financial services and tourism within the pan-Pearl River Delta region. The South China Morning Post understands Shenzhen University has approached Chinese University for assistance in setting up a faculty of medicine. A Chinese University delegation led by pro-vice-chancellor Jack Cheng Chun-yiu visited Shenzhen early last month expressing an interest in running programmes or opening a campus at Shenzhen University.