Just in from our News Desk:
Ukrainian Parliamentarly Speaker Volodymyr Hroysman says he is ready to become prime minister if asked.
Here is today's map of the security situation in eastern Ukraine, according to the National Security and Defense Council (click to expand):
Kerry calls talks in Moscow "productive":
U.S. Secretary of State John Kerry says his talks with his Russian counterpart, Sergei Lavrov, on the Syria and Ukraine crises have been "productive."
"Spoke at length today with FM Lavrov about #Syria and #Ukraine," Kerry said on Twitter on March 24. "Productive dialogue with important partner."
Kerry earlier said a "fragile" cessation of hostilities in Syria had "produced some progress," adding that he wanted to see a further reduction as well as greater flows of humanitarian aid.
Lavrov said he intended to discuss "how the international community can assist in the settlement of the Ukrainian crisis."
Kerry will also meet with President Vladimir Putin.