"Two children - a child with a gunshot wound and a child with a wound in the lower extremities - they have positive dynamics, but the condition is serious," - quotes the Minister of TASS.
He added that the children "are under control in the intensive care units."
Earlier it was reported that two boys born in 2012 and 2013 were discharged from the hospital.
On May 11, as a result of the shooting in the Kazan gymnasium No. 175, seven children and two teachers were killed, another 23 people were hospitalized.
Suspect Ilnaz Galyaviev, born in 2001, was detained and later arrested.
He fully admitted guilt.