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Ostrovsky was captured in the eastern city of Slovyansk by pro-Russian gunmen. He's been in the country for several weeks covering the crisis. Kevin Bishop, a correspondent with BBC News, spoke with Ostrovsky after his release, tweeting that Ostrovsky "is delighted to see how many more Twitter followers he's acquired."
Ostrovsky is now en route to the Ukrainian city of Donetsk. --Jordan Valinsky