Leaders of Australia, India, Japan and the US yesterday warned against attempts to “change the status quo by force,” as concerns grow about whether China could invade Taiwan.

The issue of Taiwan loomed over a leadership meeting in Tokyo of the Quadrilateral Security Dialogue (Quad) nations — the US, Japan, Australia and India — who stressed their determination to ensure a free and open Indo-Pacific region in the face of an increasingly assertive China, although Japanese Prime Minister Fumio Kishida said the group was not targeting any one country.