Growing Tensions in Ukraine

A Ukrainian army armored fighting vehicle patrols north of the eastern Ukrainian town of Slovyansk, May 13, 2014.

An effigy of a Ukrainian soldier hangs above a pro-Russian checkpoint as a local woman cycles by the entrance of the eastern Ukrainian town of Slovyansk, May 13, 2014.

A car passes by barricades with a Russian national flag on a road leading into Slovyansk, eastern Ukraine, May 13, 2014.

Yevgeni Kharkovski, 75, surveys the damage caused to his home by mortar shelling two nights ago, Slovyansk, Ukraine, May 12, 2014.

Alexander Malykhin, head of a local election committee, announces the results of the referendum on the status of Luhansk region, in Luhansk, Ukraine, May 12, 2014.

This multistory apartment block was destroyed by an explosion, in Mykolaiv, southern Ukraine, May 12, 2014.

Firefighters work outside a multistory apartment block that was heavily damaged by an explosion. At least three people died in the explosion, in Mykolaiv, southern Ukraine, May 12, 2014.

People gather near a multistory apartment that was destroyed by an explosion, in Mykolaiv, southern Ukraine, May 12, 2014.

Mourners carry a coffin containing the body of Rodion Dobrodomov, a member of the Ukrainian National Guard killed during a battle in Mariupol on May 9, at his funeral, in Kyiv, May 12, 2014.

A pro-Russia rebel takes a front line position behind railway cars following early morning shelling by Ukrainian forces, south of the eastern Ukrainian city of Slovyansk, May 12, 2014.