The order asked for a “swift working out of new positions about the types of weapons that can be in civilian circulation, can be in the hands of the population,” Mr. Peskov said.
A member of Russia’s Parliament, Aleksandr Khinshtein, said the attacker had obtained a gun license on April 28 and had used a pump-action shotgun in the attack.
The Russian federal government sent a plane from Moscow with medics and psychologists to help treat the children who were in the grade-one-through-11 school, called Gymnasium No. 175. The health and education ministers also flew to Kazan.
Pictures posted on social media described as scenes from inside the school after the shooting showed doors torn from their frames and debris in the hallways. It was not clear whether the doors had been ripped out during the attack or during the security service operation against the shooter.
In the most recent similar mass shooting — in 2018 at a college in Kerch, a town in Russian-occupied Crimea — 21 people were killed and 50 were wounded. Other less lethal incidents in schools and colleges followed, including several attacks with air guns and an attack with an ax in Ulan-Ude, a city in Siberia, that wounded a teacher.
In response, Nikolai Patrushev, the director of Russia’s National Security Council, in 2019 blamed unrestricted access to the internet for children, saying that it “destructively influences the consciousness and behavior of students” by exposing them to violent content.