Kremlin press secretary Dmitry Peskov has refrained from commentaries about the letter of Ukrainian President Petro Poroshenko to Moscow concerning Nadia Savchenko.

"So far I cannot say anything about the letter. Maybe it has been received already. If it was sent along diplomatic channels, probably, it has already been received," Peskov said to reporters.

He said "so far there will be no reaction" to the letter.