Vacheslav Ponomarev, the self-proclaimed mayor of Slovyansk, right, speaks to Axel Schneider of Germany, a foreign military observer being held by Ponomarev's group during a press conference in the city hall of Slovyansk, eastern Ukraine, Sunday, April 27, 2014. As Western governments vowed to impose more sanctions against Russia and its supporters in eastern Ukraine, a group of foreign military observers remained in captivity Sunday accused of being NATO spies by a pro-Russian insurgency. The German-led, eight-member team was traveling under the auspices of the Organization of Security and Cooperation in Europe when they were detained Friday. (AP Photo/Alexander Zemlianichenko)
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