Files and evidence to be collected by the Ukrainian Prosecutor General's Office as part of a criminal investigation against high-ranking Russian officials may be used in international courts as well, Ukraine's Justice Minister Pavlo Petrenko said.

"It is a good and positive step [placing the suspects on the wanted list] because information on violations of both international treaties and Ukrainian legislation that will be recorded during these criminal proceedings will become a serious evidential base in international courts," the minister told the 112 Ukraine television station.

Petrenko also said that he welcomed the active position of the Ukrainian Prosecutor General's Office and announced plans for cooperation between the Justice Ministry and the Ukrainian Prosecutor General's Office in this area.

The minister also commented on the possibility of brining charges against Russian President Vladimir Putin and Prime Minister Dmitry Medvedev. "We can announce the suspicion to Putin and Medvedev if they violated the Ukrainian legislation. Their positions do not matter," the minister said.

Ukrainian Prosecutor General Yuriy Lutsenko said on Monday that top Russian generals were suspected of committing crimes against the foundations of Ukraine's national security. Lutsenko also made it clear that the Prosecutor General's Office of Ukraine is collecting evidence to bring charges against Putin and Medvedev.