TASS, citing data from the regional Ministry of Health, reported that at least four people were injured during the attack - students and a teacher.
"According to the investigation, it is established that the attacker acted alone". He chopped off one of the victim's fingers, according to some reports.
"The suspected teenager was detained", the statement said.
According to preliminary information, in the morning of January 19 a 9th grade student of the school attacked students with an axe and then set fire to the school with an incendiary bottle.
TASS CHARRED Charred books were seen strewn on the floor after the attack
The instructor involved, Russian language and literature teacher Irina Ramenskaya, told Mash, a popular news channel on the Telegram messenger app, that she had been holding a class when suddenly the door opened and an object was thrown into the room. The attacker was armed with an axe. "The boy told her [the girl] not to go to school because 'there will be a massacre, '" she added. It exploded and the curtains caught fire, the class ran out.
The investigating committee said criminal proceedings have been started against the teen for the attempted murder of two or more people. Another girl sustained injuries after being slashed in the face. Local investigators will also look into whether the school staff did enough to prevent the attack.
Ulan-Ude is the capital city of the Republic of Buryatia and was a historic trade centre between Russian Federation and China.
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