Investigating Judge Larysa Tsokol read out a respective ruling on Monday, an Ukrinform correspondent reports.
"The petition from the Prosecutor General's Office... regarding the use of a preventive measure in the form of round-the-clock house arrest for suspect Mikheil Nikolozovich Saakashvili... has been rejected. The ruling may be appealed directly at Kyiv Court of Appeal within five days from the day it was announced," the judge said.
The full text of the court ruling is to be read out at 09.00 on December 14, 2017.
Earlier, the prosecution filed a petition asking the court to put Saakashvili on round-the-clock house arrest for two months at the place of his residence on Kostiolna Street in Kyiv.
Batkivshchyna Party leader Yulia Tymoshenko said she was ready to bail out Saakashvili.
As Ukrinform reported, law enforcement officers detained Saakashvili in Kyiv on December 8. He was charged with assisting members of criminal organizations and concealing their criminal activity (Part 2, Article 256 of the Criminal Code of Ukraine).