City of Kazan
11 people have been killed following a shooting at a school in Russia's southwest.
Authorities in western Russia report 7 children have died, with 16 injured.
Local media report witnesses hearing an explosion at the site, in the city of Kazan.
The video available below, may contain graphic images, which some viewers may find distressing - caution advised:
В казанской школе произошла стрельба. Погибли восемь человек - семь детей и учительница, заявили власти, еще 16 человек госпитализированы. В экстренных службах сообщали о 11 погибших. Устроившего стрельбу задержали.
— РИА Новости (@rianru) May 11, 2021
12 мая в Татарстане объявлено днем траура pic.twitter.com/vzRtYCC1ze
One 19 year-old gunman has been arrested.
It was believed a second suspect could still be in the school, but the regional governor says that no other accomplices have been established.
Sky's Diana Magnay is in Moscow:
