The top diplomats from North Korea and Russia blamed the U.S. for causing tensions on the Korean Peninsula and agreed to strengthen relations, according to the Russian foreign ministry, in a meeting in Moscow on Monday just ahead of President Donald Trump’s visit to South Korea.

DPRK foreign minister Choe Son Hui and her counterpart Sergei Lavrov “expressed a shared view that the main source of heightened tensions on the Korean Peninsula, in Northeast Asia, and globally lies in the aggressive actions of the United States and its allies,” the Russian ministry reported.