Citing the emergency services ministry, the RIA news agency reported a school shooting in the Russian city of Kazan on May Tuesday. Eleven people were killed and several others are battling for their lives in hospital.
Conflicting reports surfaced about the situation, with some Russian news agencies reporting two teenage gunmen were involved and others saying one was involved.
RIA said one gunman had been detained and said an explosion had been heard at the school. The motive behind the attack could not be ascertained.
Video footage shared on social media showed emergency service vehicles parked outside the school, with people running towards the building. Other videos showed broken windows with debris outside.