The Russian Federation will be held accountable for the war crimes committed, said Ukrainian Foreign Minister Dmytro Kuleba.

"We will hold Russia accountable for its war crimes and crimes against humanity. Together with 45 states, Ukraine has launched OSCE Moscow Mechanism on Russia’s invasion. Expert mission will submit findings to accountability mechanisms, including international courts & tribunals," Kuleba said on Twitter Thursday.

The OSCE Moscow Mechanism is the OSCE's operating method for monitoring the implementation of commitments made by participating States in the area of human rights and democracy. The Moscow Mechanism enables participating States to form ad hoc missions from among independent experts to assist in resolving specific problems related to the human dimension, whether on their own territory or on the territory of another OSCE participating State.