Donetsk

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Pro-Russian activists set their flags over the entrance to the regional administration building in Donetsk, Ukraine, Tuesday, April 8, 2014. In the city protesters dug in for their third day at the 11-story regional administration headquarters they captured on Sunday and began to declare their own parallel government. Ukrainian authorities on Tuesday reasserted control over an administration building in the country’s second-largest city of Kharkiv, 250 Km ( 155 miles) north of Donetsk, which had been seized by pro-Russian protesters, and authorities detained some dozens. (AP Photo/Efrem Lukatsky)

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Pro-Russian activists set their flags over the entrance to the regional administration building in Donetsk, Ukraine, where they dug in for their third day.

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Pro-Russian activists set their flags over the entrance to the regional administration building in Donetsk, Ukraine, Tuesday, April 8, 2014. In the city protesters dug in for their third day at the 11-story regional administration headquarters they captured on Sunday and began to declare their own parallel government. Ukrainian authorities on Tuesday reasserted control over an administration building in the country’s second-largest city of Kharkiv, 250 Km ( 155 miles) north of Donetsk, which had been seized by pro-Russian protesters, and authorities detained some dozens. (AP Photo/Efrem Lukatsky)

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Activists prepare a barricade in front of the regional administration building in Donetsk, Ukraine, Tuesday, April 8, 2014. Ukrainian authorities on Tuesday reasserted control over an administration building in Kharkiv, the country’s second-largest city, which had been seized by pro-Russian protesters, detaining dozens. Meanwhile, in Donetsk, a city 250 kilometers (155 miles) further south, the makings of an improved self-appointed government began taking shape as demonstrators dug in for their third day at the 11-story regional administration headquarters. (AP Photo/Efrem Lukatsky)

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Pro-Russian activists sleep at a barricade in front of the regional administration building in Donetsk, Ukraine, Tuesday, April 8, 2014, as the makings of an improved self-appointed government began to take shape, with demonstrators dug in for their third day at the 11-storey regional administration headquarters. Ukrainian authorities on Tuesday reasserted control over an administration building in the country’s second-largest city of Kharkiv, 250 Km ( 155 miles) north of Donetsk, which had been seized by pro-Russian protesters, and authorities detained some dozens. (AP Photo/Efrem Lukatsky)

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Pro-Russian activist wears a hand-made mask behind a barricade in front of the regional administration building in Donetsk, Ukraine, Tuesday, April 8, 2014, as the makings of an improved self-appointed government began to take shape, with demonstrators dug in for their third day at the 11-storey regional headquarters. Ukrainian authorities on Tuesday reasserted control over an administration building in the country’s second-largest city of Kharkiv, 250 Km ( 155 miles) north of Donetsk, which had been seized by pro-Russian protesters, and authorities detained some dozens. (AP Photo/Efrem Lukatsky)