MOSCOW -- A prominent Russian journalist has died of his injuries six weeks after being attacked in St. Petersburg. 

The death Wednesday of 73-year-old Nikolai Andrushchenko was reported by Russian media outlets that cited his lawyer and the editor-in-chief of the Novy Peterburg newspaper. 

The state news agency RIA Novosti quoted editor Denis Usov as saying the journalist had been in a medically induced coma since the March 9 attack. 

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Andrushchenko’s attackers have not been identified.  Usov has linked the assault to articles in the newspaper about corruption in St. Petersburg. 

Andrushchenko was a member of the St. Petersburg city council from 1990 until 1993.  He was among the founders of Novy Peterburg, where he made a name for himself writing about human rights issues and crime.