Quad to discuss maritime security amid China tensions

Leaders also expected to tackle health security, tech, infrastructure measures

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Tensions brewing in Asia's trade-rich waters top the agenda as US President Joe Biden welcomes leaders from Australia, India and Japan to his Delaware home town for a diplomatic push to counter China in the waning months of his presidency.

Mr Biden heads to Wilmington, Delaware, on Sept 20 ahead of the Quad Leaders Summit, where the leaders are expected to speak about conflict between Beijing and its neighbours in the South China Sea who have repeatedly clashed over disputed territory.

On the agenda: Stepped-up security cooperation in the Indian Ocean and progress to track illegal fishing fleets operating in the waters of the Indo-Pacific, most of which are Chinese.