Ukrainian state-run railway Ukrzaliznytsia halted its train from Poland to prevent former Georgian President Mikheil Saakashvili, whose Ukrainian citizenship and passport was revoked after his relations with the country’s president fell apart, from disembarking in the country.
Bloomberg: Ukraine seeks to prevent Saakashvili’s entry by blocking train

Former Georgian President Mikheil Saakashvili (L) and former Prime Minister of Ukraine Yulia Tymoshenko (R) talk with journalists in a train going to Ukraine from the railway station in Przemysl, southeastern Poland, on September 10, 2017.Tbilisi has asked Kiev to extradite former Georgian president Mikheil Saakashvili, who is locked in a feud with Ukraine's leader, authorities said on September 5, 2017. Saakashvili, 49, is credited with pushing through pro-Western reforms in his native Georgia which he led from 2004 to 2013. In the wake of the pro-Western revolution in Kiev he moved to Ukraine in 2015 to work for the country's authorities as governor of the key Odessa region on the Black Sea. / AFP PHOTO / JANEK SKARZYNSKI