Atlanta, Oct. 31 -- US Secretary of State Marco Rubio has said the Quad is not aimed at any country, but acknowledged that the behaviours it raises concerns about are "coming repeatedly from one country".

"The Quad is not anti-anybody. It's not a format that exists to be against any country," he told reporters in Atlanta. "To the extent we express concern about things in the Quad, it's concern about behaviours. It's concern about activities.

"Now, those activities or behaviours are coming repeatedly from one country. That's going to be obvious to everybody. But it is not an anti-China or anti-anybody coalition. The Quad is a cooperative agreement between four countries that share a common interest and common opposition to behaviours, an...