A spokeswoman for Vienna's prosecutors said on Tuesday, Censor.NET reports citing Reuters.
The spokeswoman said Firtash's detention was technically separate from Tuesday's extradition ruling as it was based on a Spanish request for Firtash's arrest for which she could give no details.
She said it was too early to tell how the implementation of the European arrest warrant would impact Tuesday's decision to extradite Firtash to the United States over bribery allegations which he denies.
Earlier, Vienna's Higher Regional Court considered an appeal by Austria's prosecution against the decision to overturn the extradition of Ukrainian businessman Dmytro Firtash to the United States.
On Oct. 23, 2015, Vienna's prosecution, following a request by the Department of Justice of the United States, appealed a decision by the Vienna Higher Regional Court taken on April 30, 2015. On that day, the court refused to extradite the infamous Ukrainian tycoon to the United States. The judge explained his ruling was based on assumption the extradition request was politically charged.
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