A gunman has opened fire at a school in central Russia, killing at least six people and injuring twenty, Russian officials say.
Victims include pupils and a security a guard at the school in the city of Izhevsk, according to Russian media.
The incident took place at school number 88, which has almost 1,000 pupils and some 80 teachers.
The gunman has reportedly killed himself and the motive is unclear. Emergency officials are at the scene.
Russian media have posted videos online which appear to have been filmed inside the school where the shooting has taken place.
One videos appears to show blood on the floor and a bullet hole in a window, with children crouching down underneath desks.
The school is in the centre of Izhevsk, a city of about 650,000 residents, close to central government buildings.
Teachers and pupils have been evacuated.