China on Thursday responded to a Reuters report that the U.S. and India are discussing joint naval patrols in the disputed South China Sea, warning that interference from countries outside the region threatens peace and stability.

"No cooperation between any countries should be directed at a third party," Chinese Foreign Ministry spokesman Hong Lei said in an emailed statement to Reuters, in response to a request for comment on the report published on Wednesday.

"Countries from outside the area must stop pushing forward the militarization of the South China Sea, cease endangering the sovereignty and national security of littoral countries in the name of 'freedom of navigation' and harming the peace and stability of the region."