Coordination between the U.S. and China is “very important” to bringing North Korea back to the dialogue table, the top U.S. security adviser said on Tuesday, following a virtual summit between the two countries’ leaders.

During the summit, U.S. President Joe Biden and Chinese President Xi Jinping “exchanged views” on regional and international issues, including the situation on the Korean Peninsula, according to both governments.

“Of course, we have seen a series of tests by North Korea. The United States has indicated we are prepared to engage in good faith and diplomacy