President Obama plans to call Russian President Vladimir Putin on Friday to discuss the recent violence in Ukraine, deputy national security adviser Tony Blinken said.

Blinken revealed during an interview with MSNBC's Andrea Mitchell that the president would talk to Putin in an effort to further diffuse the situation. Obama discussed Ukraine on Thursday with German Chancellor Angela Merkel, and the two "agreed that it is critical that the United States, Germany and the European Union continue to stay in close touch in the days ahead on steps we can take to support an end to the violence and a political solution that is in the best interests of the Ukrainian people," the White House said.

"This has been a very tightly and closely coordinated effort directed by the president," Blinken insisted.