Ukrainian officials are doing their best to coordinate efforts with the international community to make Russia release Ukrainian servicewoman and parliament deputy Nadia Savchenko, who was sentenced in a Russian court to 22 years of imprisonment, said Ukrainian President Petro Poroshenko.

"The whole world must apply sanctions against all 46 persons involved into the organization of the mock trial that took place recently," Poroshenko's press service quotes him as saying on Thursday morning during a meeting with Nadia's mother.

According to the report, president ordered the National Security and Defense Council (NSDC) to draft the list of individuals to be included in the so-called "Savchenko's list."

"We're doing our best to coordinate the efforts with the international society to increase pressure on Russia to release of Nadia Savchenko," the president said.

The head of state said he had spoke by telephone this week with UN Secretary General Ban Ki-moon and U.S. Vice President Joe Biden.

Poroshenko said it is important to liberate other Ukrainians illegally detained in Russia, including Oleh Sentsov and Oleksandr Kolchenko.