evidence: The Indonesian Maritime Security Agency said it detected Chinese ship 5204 entering Indonesia’s exclusive economic zone in what Indonesia calls the North Natuna waters on Friday night. [...] Indonesia does not have a territorial claim to the South China Sea, but a section of Indonesia’s exclusive economic zone that includes natural gas fields lies within China’s "nine-dash line." Chinese ships have regularly entered the area Indonesia calls the North Natuna Sea, causing tensions between the countries. [...] Chinese ships also regularly patrol off the island of Borneo and near James Shoal east of the Natuna islands, China’s southernmost territorial claim which Malaysia says belongs to it.