KIEV, August 29 - RAPSI. Former Ukrainian Prime Minister Yulia Tymoshenko said on Monday that some of the "gas" case materials have disappeared, RIA Novosti reports from the courtroom.

Another hearing in the case is presently being held in Kiev.

The Prosecutor Generals Office has charged Tymoshenko with abusing her power by signing gas supply agreements on behalf of Ukraine with Gazprom and Naftogaz in 2009, when she was prime minister. She was arrested on August 5.

After the judge read the fourteenth volume of the case materials, Tymoshenkos attorney Alexander Plakhotnyuk said there used to be 522 pages in the volume. However, now there are only 309 pages.

Judge Rodion Kireyev said the defenses claim has been placed on record.

Tymoshenko also expressed her surprise and noted that additions to the Ukrainian Security Services letters were also missing.

"A considerable part of the materials have disappeared from the case," the former prime minister said.