A school shooting in the Russian city of Kazan has left at least 11 people dead.
Reports say most of the victims were children.
Heavily armed police and emergency vehicles responded to the shooting at School.
Footage shared on social media showed some children jumping from windows to escape as well as injured people being evacuated.
A teenager was detained after the attack at the school, located some 820km (510 miles) east of Moscow in the mainly Muslim republic of Tatarstan.
Tatarstan President Rustam Minnikhanov described the shooting as a “disaster” and a “tragedy”.
“The terrorist has been arrested. He’s 19. He’s a registered firearm owner,” he said.
Police have opened an investigation, but no motive has yet been established.