WASHINGTON/BEIJING, Nov 16 (Reuters) - U.S. President Joe Biden and Chinese leader Xi Jinping agreed at a virtual meeting to look into the possibility of arms control talks, U.S. national security adviser Jake Sullivan said on Tuesday. Biden and Xi agreed to "look to begin to carry forward discussion on strategic stability," Sullivan said in a reference to U.S. concerns about China"s nuclear and missile buildup. "You will see at multiple levels an intensification of the engagement to ensure that there are guardrails around this competition so that it doesn"t veer off into conflict," Sullivan said in a Brookings Institution webinar. Sullivan did not elaborate on what form the discussions on strategic stability could take, but went on to say: "That is not the same as what we have in the Russian context with the formal strategic stability dialogue. That is far more mature, has a much deeper history to it. There"s less maturity to that in the U.S.-China relationship, but the two leaders did discuss these issues and it is now incumbent on us to think about the most productive way to carry it forward." Washington has repeatedly urged China to join it and Russia in a new arms control treaty. Beijing says the arsenals of the other two countries dwarf its own. It says it is ready to conduct bilateral dialogues on strategic security "on the basis of equality and mutual respect." It was the two leaders" most in-depth exchange since Biden took office in January. Although they spoke for about three-and-a-half hours, the two leaders appeared to do little to narrow differences that have raised fears of an eventual conflict between the two superpowers. read more The United States had envisioned the meeting putting stability into a relationship increasingly troubled over a litany of issues, including what Washington views as Beijing"s aggressive actions toward self-ruled Taiwan. Sullivan said Xi and Biden discussed a broad range of global economic issues, including how the United States and China can work together to ensure world energy supply and price volatility do not imperil the global economic recovery. "The two presidents tasked their teams to coordinate on this issue expeditiously," he said. In the meeting Biden pressed his Chinese counterpart on human rights and Xi warned that China would respond to provocations on Taiwan. A senior U.S. official said in a briefing after the meeting that the U.S. aim was not to ease tensions, nor necessarily was that the result, and there were no breakthroughs to report. China"s state media cited unnamed Chinese foreign ministry sources as saying the two sides would ease restrictions on access for journalists from each other"s countries. The China Daily newspaper said a consensus on journalist visas, among other points, was reached before the virtual meeting. read more Officials at the White House and State Department did not immediately respond to requests for comment on the report. Beijing accused Washington of a "political crackdown" on Chinese journalists after it slashed the number of Chinese nationals allowed to work at U.S. offices of major Chinese state-owned media and limited their authorized stay to 90 days, with an option to extend. China, already accused internationally of not respecting press freedoms, then expelled U.S. journalists at several U.S. newspapers and introduced new visa restrictions on some U.S. media companies.