Indonesia's navy has stepped up patrols around the islands after a series of face-offs between Indonesian naval vessels and...

  Indonesia's navy fired warning shots at several boats with Chinese flags it accused of fishing illegally.

  There was a violation by the Chinese coastguard of Indonesia's sovereign rights and jurisdiction

"If they say their nine-dash line does not claim Natuna then why is there still illegal fishing happening there"

  "The nine-dash line is a problem we are facing."