"Very informed sources confirm that my passport that has been stolen is now in the office of the President of Ukraine Petro Poroshenko," Saakashvili told journalists at a meeting in Lviv streamed live on his Facebook page.
"He was given the passport in the morning when he came to work, the day after we returned [to Ukraine across the border with Poland]," he said, adding that he no longer has any identity documents.
Saakashvili earlier alleged that his passport had been stolen in a bus while he was heading for Ukraine on September 10. He also claimed his passport had been seized by Ukrainian policemen.
Read alsoPoroshenko praises border guards refraining from using weapons against crowd of Saakashvili's supportersOn Tuesday morning, police and border guards came to the Leopolis hotel in Lviv, where Saakashvili was staying.
As UNIAN reported earlier, Saakashvili, earlier deprived of Ukrainian citizenship, managed to cross into Ukraine at the Shehyni checkpoint on September 10.
A crowd of the politician's supporters broke through the cordons of Ukrainian law enforcers, took Saakashvili and a number of MPs and public figures accompanying Saakashvili in a tight ring, and literally forced the group's entry to the territory of Ukraine evading standard border control routine.
According to the member of the Interior Ministry's collegium Anton Gerashchenko, Saakashvili was accompanied by Members of Parliament Yulia Tymoshenko, Serhiy Vlasenko, Yuriy Derevianko, Pavlo Kostenko, Dmytro Dobrodomov, and former SBU chief Valentyn Nalyvaichenko.
A spokesperson for the State Border Guard Service said that Saakashvili had crossed the Polish-Ukrainian border illegally. The police in Lviv region launched a criminal investigation into the illegal transfer of persons across the state border of Ukraine.