The preliminary data is that the high school student who broke into the Moscow school N263 armed with a weapon had a conflict with his teacher of geography, which caused the incident, a source in law enforcement agencies told Interfax.

"The preliminary data is that the high school student's actions were his revenge against his geography teacher," the source told Interfax.

The tragedy took place at the biology classroom where the student armed with two rifles shot the geography teacher, he said.

Man with a rifle opens fire at Moscow school, takes hostages

A man with a rifle opened fire at a school in the northern Moscow region of Otradnoe on the morning of Feb. 3. He shot the policeman protecting the entrance to the building and took a number of 10th grade students hostage in a biology class. The policeman has died from wounds sustained in the shooting. Read more>>>

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