Secretary of State Marco Rubio issued a not-so-subtle warning to China over its actions at sea, vowing together with US allies to counter its assertiveness.

After the Quad ministerial, Rubio had his first bilateral with Jaishankar, which lasted for more than an hour. India's Ambassador to the US, Vinay Kwatra, was also present in the meeting. Jaishankar also met National Security Advisor Mike Waltz on Tuesday.

On his first full day as secretary of state, Marco Rubio is meeting with his counterparts from a group of countries known as the Quad: the United States plus India, Japan and Australia, representing nearly 2 billion people and more than a third of global GDP.