South Korean maritime police have reported a surge of Chinese fishing boats in the country's west sea waters, with the South Korean Coast Guard driving away 12 of them. The incident occurred as Chinese fishing boats are expected to increase their presence for the fishing season. The two countries have a history of fishery disputes, and China's maritime institute has highlighted the region's rich marine resources and the scarce resources on the Chinese side. In November last year, an agreement was reached for Chinese fishing fleets to install and maintain the automatic identification system (AIS) while in South Korea's exclusive economic zone.