Kazan shooting: ‘We are all shocked and saddened’

The shooting at a school in the Russian city of Kazan has left everyone shocked and saddened, a resident of the city has said.

Rezeda Kotdusova, whose husband works in a building next to the school where the attack happened, told BBC World News what her partner had seen.

A 19-year-old suspect has been detained.

Russian President Vladimir Putin has said he would review Russia's gun control laws.