Moscow, May 11 (TIWN) At least 11 people were killed and 32 others injured on Tuesday in a shooting incident at a school in the Russian city of Kazan, authorities said, adding that a suspect has been arrested.

Two children could be seen leaping from the third floor of the four-storey School Number 175 to escape as gunshots rang out, in a video filmed by an onlooker that was circulated by Russia's RIA news agency. 

"We heard the sounds of explosions at the beginning of the second lesson. All the teachers locked the children in the classrooms. The shooting was on the third floor," said one teacher, quoted by Tatar Inform, a local media outlet.