The attacker "carried out attacks on passersby, causing stab wounds to eight", Russia´s Investigative Committee, which probes major crimes said, adding that armed police then "liquidated" the attacker.
To recall, the CrimeRussia has previously reported that the incident took place in Surgut on August 19 at 11:20 a.m.
A spokesman for Russia's Investigations Committee said that they are investigating the murder.
The Islamic State has claimed responsibility for a teenage knife-wielding terrorist, also wearing a fake suicide vest, who was killed by police in Surgut, central Russian Federation, after he stabbed eight people.
This attack comes a day after an attack on the knife in Finland, where a Moroccan 18-year-old was stabbed to death two people and injured eight others in the city of Turku (south-west).
The armed man has been identified and authorities are now trying to find out his motive for the attack.
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The Islamic State said that the man who attacked in the Siberian town of Surgut was one of their soldiers. Later, ISIS claimed responsibility for the terrorist attack.
Surgut is a city in the Khanty-Mansiysk area of Siberia (northern Russia) where there is an important oil industry. Two are reportedly in serious condition.
Investigators and criminologists are now working at the scene, and a criminal case has been launched, said the previous statement.
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Sickening photographs of those injured the attack, have emerged, including a person slumped on a bench, bleeding profusely.
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