Detectives are investigating a schoolgirl after a shocking video showing her fighting with a boy emerged and other other pupils claimed she has male classmates 'living in fear'.
The teenager, named only as Anna, is reportedly a new girl at School 1557 in Zelenograd, just outside Moscow.
Anna has allegedly acted aggressively and repeatedly attacked other pupils ever since she starting the school a few weeks ago.
Fellow pupils say they have lodged complaints about her violent behaviour but school administrators deny receiving them, according to local media.
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