Countries surrounding the South China Sea have built more than 90 outposts on around 70 islands, rocks and reefs in the highly disputed area, satellite images show.

Indonesia said on Monday it does not recognise China's claims over the South China Sea, despite signing a maritime development deal with Beijing, as some analysts warned the pact risked compromising its sovereign rights.

China stakes claim to almost the entirety of the South China Sea. It has a series of disputes with several Southeast Asian nations including the Philippines and Vietnam over territory in the waters, which are part of a key shipping route in Asia.

For more than a decade, China has been using an increasingly aggressive hybrid-warfare strategy to increase its power and influence in the strategically important South China Sea. Countering it will be one of the defining

Malaysia sends a letter of complaint to Vietnam over its alleged expansion of a coral reef in the disputed Spratly Islands that both countries claim as their own.

China is putting ever-greater pressure on the Philippines to cede its sovereign rights in the South China Sea, Secretary of National Defense Gilberto Teodoro said.

Philippine President Ferdinand Marcos Jr. has signed two laws reaffirming the extent of his country’s maritime territories and right to resources, including in the South China Sea, where the new laws clash with Beijing’s extensive territorial claims.

Indonesia said on Monday it does not recognise China's claims over the South China Sea despite signing a joint maritime development deal with Beijing, as some analysts warned the agreement risked compromising the country's sovereign rights.

China is stepping up pressure on the Philippines to concede its sovereign rights in the South China Sea, Manila's Defense Secretary Gilberto Teodoro said on Tuesday after meeting his Australian counterpart in Canberra.