Terrorist attack in Moscow: “it will change absolutely nothing on the front in Ukraine,” says Sergei Zhirnov. More than 60 people were killed and 115 injured Friday evening in an armed attack followed by a huge fire in a concert hall in the suburbs of Moscow.

The Islamic State (IS) claimed responsibility for the attack and Russian law enforcement officials said they were "searching" for the attackers. If Russia has already experienced a series of terrorist attacks in 2002, 2004 and 2010, this new attack raises questions barely a week after the re-election of Vladimir Putin as head of the country.