Well-known Russian military blogger Vladlen Tatarsky was killed in a blast in a cafe in St Petersburg on Sunday, Russian news agencies reported, quoting sources as saying it was caused by an explosive device.
Tatarsky, whose real name was Maxim Fomin, had more than 560,000 followers on Telegram and was one of the most prominent of the influential military bloggers who have provided an often critical running commentary on Russia's war in Ukraine.
A St Petersburg website said the explosion took place at a cafe that had at one time belonged to Yevgeny Prigozhin, founder of the Wagner private army that is fighting for Russia in Ukraine.
RIA news agency said six other people were injured in the blast. There was no indication of who was responsible.
Edward Docks, Reuters