Russia’s Lenta.ru online news site says an unknown assailant has thrown improvised firebombs into the company’s main office in Moscow.
Lenta.ru reported on September 29 that the attack took place overnight.
It said assailants broke several window panes in the attack and painted graffiti on the outside of the building – including text that read: "You Are Lying, Lenta," and a Nazi swastika.
The report said nobody was injured in the attack
Moscow police confirmed the arson attack, saying that one person threw a Molotov cocktail through the office window and ran away.
Lenta.ru posted video footage from a security camera that showed a young man throwing two bottles with a flaming liquid at the front of the building.
It also posted photographs of the damage showing broken windows covered in soot from flames.
But a wooden table that contained equipment just inside the window was not burned.
Police said an investigation has been launched.
Lenta.ru is owned by Rambler Media Group and is one of the most popular independent Russian language resources online.
Based on reporting by Lenta.ru. Meduza, and Interfax