Supporters of former Georgian President Mikheil Saakashvili applaud to an orator during in protest of corruption in Ukraine in Independence Square in Kiev, Ukraine, Sunday, Dec. 10, 2017. A poster reads 'Freedom Saakashvili!' Several thousand supporters of opposition leader Mikheil Saakashvili are rallying in the Ukrainian capital of Kiev to demand his release from jail. (AP Photo/Sergei Grits)

Supporters attend a rally in support of arrested former Georgian President Mikheil Saakashvili outside a detention centre in Kiev on December 10, 2017. Ukrainian police re-arrested Saakashvili after a similar attempt to detain the opponent of Ukranian President Petro Poroshenko had failed. / AFP PHOTO / GENYA SAVILOV

Supporters wave flags as they attend a rally in support of arrested former Georgian President Mikheil Saakashvili outside a detention centre in Kiev on December 10, 2017. Ukrainian police re-arrested Saakashvili after a similar attempt to detain the opponent of Ukranian President Petro Poroshenko had failed. / AFP PHOTO / GENYA SAVILOV

Supporters gesture as they attend a rally in support of arrested former Georgian President Mikheil Saakashvili outside a detention centre in Kiev on December 10, 2017. Ukrainian police re-arrested Saakashvili after a similar attempt to detain the opponent of Ukranian President Petro Poroshenko had failed. / AFP PHOTO / GENYA SAVILOV

Policemen look on as they observe supporters attending a rally in support of arrested former Georgian President Mikheil Saakashvili outside a detention centre in Kiev on December 10, 2017. Ukrainian police re-arrested Saakashvili after a similar attempt to detain the opponent of Ukranian President Petro Poroshenko had failed. / AFP PHOTO / GENYA SAVILOV

A woman takes pictures of policemen as they observe supporters attending a rally in support of arrested former Georgian President Mikheil Saakashvili outside a detention centre in Kiev on December 10, 2017. Ukrainian police re-arrested Saakashvili after a similar attempt to detain the opponent of Ukranian President Petro Poroshenko had failed. / AFP PHOTO / GENYA SAVILOV

Sandra Rulofs (C), wife of former Georgian president Mikheil Saakashvili takes part in a rally in support of her arrested husband outside a detention centre in Kiev on December 10, 2017. Ukrainian police re-arrested Saakashvili after a similar attempt to detain the opponent of Ukranian President Petro Poroshenko had failed. / AFP PHOTO / GENYA SAVILOV

A masked supporter of the Movement of New Forces, the political party led by Mikheil Saakashvili stands by a tyre barricade in front of Ukrainian parliament in Kiev, Ukraine, Friday, Dec. 8, 2017. Activists demand Ukrainian President Petro Poroshenko to resign. (AP Photo/Efrem Lukatsky)

Former Georgian president Mikheil Saakashvili, center, speaks to people wounded during clashes with police in Kiev, Ukraine, Wednesday, Dec. 6, 2017. The former president of Georgia who has become Ukraine???s top opposition politician said on Wednesday that he would not give himself up to authorities after the prosecutors issued an ultimatum. (AP Photo/Evgeniy Maloletka)

Former Georgian president Mikheil Saakashvili, center, surrounded by his supporters speaks on the phone as they camp out outside parliament demanding the resignation of the Ukrainian president, in Kiev, Ukraine, Wednesday, Dec. 6, 2017. The former president of Georgia who has become Ukraine???s top opposition politician said on Wednesday that he would not give himself up to authorities after the prosecutors issued an ultimatum. (AP Photo/Evgeniy Maloletka)

Former Georgian president Mikheil Saakashvili, left, shakes hands with one of his supporters while speaking on the phone as they camp out outside parliament demanding the resignation of the Ukrainian president, in Kiev, Ukraine, Wednesday, Dec. 6, 2017. The former president of Georgia who has become Ukraine's top opposition politician said on Wednesday that he would not give himself up to authorities after the prosecutors issued an ultimatum. (AP Photo/Evgeniy Maloletka)

Former Georgian president Mikheil Saakashvili surrounded by his supporters, speaks on the phone as they camp out outside parliament demanding the resignation of the Ukrainian president, in Kiev, Ukraine, Wednesday, Dec. 6, 2017. The former president of Georgia who has become Ukraine's top opposition politician said on Wednesday that he would not give himself up to authorities after the prosecutors issued an ultimatum. (AP Photo/Evgeniy Maloletka)

Former Georgian president Mikheil Saakashvili smiles surrounded by his supporters as they camp out outside parliament demanding the resignation of the Ukrainian president, in Kiev, Ukraine, Wednesday, Dec. 6, 2017. The former president of Georgia who has become Ukraine's top opposition politician said on Wednesday that he would not give himself up to authorities after the prosecutors issued an ultimatum. (AP Photo/Evgeniy Maloletka)

A Ukrainian Orthodox priest, a supporter of former Georgian president Mikheil Saakashvili stands at a camp outside parliament where people are demanding the resignation of the Ukrainian president, in Kiev, Ukraine, Wednesday, Dec. 6, 2017. The former president of Georgia who has become Ukraine's top opposition politician said on Wednesday that he would not give himself up to authorities after the prosecutors issued an ultimatum. (AP Photo/Evgeniy Maloletka)

Former Georgian president Mikheil Saakashvili gestures while speaking to his supporters as they camp out outside parliament demanding the resignation of the Ukrainian president, in Kiev, Ukraine, Wednesday, Dec. 6, 2017. Saakashvili, who has become Ukraine's top opposition politician, said on Wednesday that he would not give himself up to authorities after the prosecutors issued an ultimatum. (AP Photo/Evgeniy Maloletka)

People walk past barricades set by former Georgian president Mikheil Saakashvili's supporters as they camp out outside parliament demanding the resignation of the Ukrainian president, in Kiev, Ukraine, Wednesday, Dec. 6, 2017. Saakashvili, who has become Ukraine's top opposition politician, said on Wednesday that he would not give himself up to authorities after the prosecutors issued an ultimatum. (AP Photo/Evgeniy Maloletka)

Former Georgian president Mikheil Saakashvili gestures while speaking to his supporters as they camp out outside parliament demanding the resignation of the Ukrainian president, in Kiev, Ukraine, Wednesday, Dec. 6, 2017. Saakashvili, who has become Ukraine's top opposition politician, said on Wednesday that he would not give himself up to authorities after the prosecutors issued an ultimatum. (AP Photo/Evgeniy Maloletka)

Supporters of former Georgian president Mikheil Saakashvili take hot tea as they camp out outside parliament demanding the resignation of the Ukrainian president, in Kiev, Ukraine, Wednesday, Dec. 6, 2017. Saakashvili, who has become Ukraine's top opposition politician, said on Wednesday that he would not give himself up to authorities after the prosecutors issued an ultimatum. (AP Photo/Evgeniy Maloletka)

Former Georgian president Mikheil Saakashvili, left, and his wife Sandra Roelofs, right, attend a rally of his supporters as they camp out outside parliament demanding the resignation of the Ukrainian president, in Kiev, Ukraine, Wednesday, Dec. 6, 2017. Saakashvili, who has become Ukraine's top opposition politician, said on Wednesday that he would not give himself up to authorities after the prosecutors issued an ultimatum. (AP Photo/Evgeniy Maloletka)