Estonia's defence ministry announced that it has started the exhumation of the remains of Soviet soldiers buried near the removed war memorial in Tallinn.
The exact number and names of the buried soldiers are not clear.
At least 96 people were reported injured and more than 600 detained in the clashes over the removal of the Soviet war memorial in the Estonian capital.
It was the second night of clashes between mainly ethnic Russians and police. One person died on Friday.
The monument was removed on Friday and taken to a secret location.
Estonia says the memorial symbolised Soviet occupation. Supporters say it celebrated heroes who fought the Nazis.