Ukraine has secured the release of 1,456 prisoners of war since Russia invaded on February 24, President Volodymyr Zelenskiy told parliament in an annual address held behind closed doors on Wednesday.
Kyiv and Moscow have held a series of prisoner swaps throughout the war which is now in its eleventh month. Zelenskiy has said the release of prisoners of war is a priority.
Russia is thought to hold thousands of Ukrainian prisoners of war, but the exact figures are not known.