Obama and Japanese PM Shinzo Abe said they made progress on security, trade issues.
President Obama said Thursday that Moscow was not abiding by “the spirit or the letter.”
Obama also expressed hope on the Trans-Pacific trade deal under negotiation.
South Korea has warned its northern neighbor may be planning a nuclear test.
Obama will travel to Asia amid lingering questions about Russia and Ukraine.
A House Democrat is calling on President Obama to discuss currency manipulation issues during meetings with Japanese leaders next week.
A group of House lawmakers is headed to the Asia-Pacific on Friday for a week of talks with top leaders in Japan, South Korea and China to discuss strengthening economic, trade and security ties.
President Obama’s effort to refocus U.S. attention to the Asia-Pacific region is falling short, a new report by the Democrats on the Senate Foreign Relations Committee warns.
A new report comes days before President Obama travels to the region.
The South Korean ferry was carrying 459 people when it sank in the Yellow Sea.