The head of Russia's influential Orthodox Church, Patriarch Kirill, said on Sunday cartoons of the Prophet Mohammad in the French satirical magazine Charlie Hebdo were "childish" compared to offences it had dished out to Christians.
Charlie Hebdo has regularly offended Muslims, Christians and others with its irreverent cartoons.
Gunmen killed 12 people at the Paris office of the weekly this month saying they were avenging the Prophet Mohammad, whom the magazine had depicted in cartoons in defiance of a ban in Islam on representing its founder.
Kirill, who has close ties to Russian President Vladimir Putin, said in a sermon that he opposed both terrorism and giving offence to religious feelings.
"The cartoons of Prophet Mohammad are childish caricatures compared to what this publication allows itself in mocking the feelings of Christians," Kirill said in an excerpt of the sermon broadcast by Rossiya 24 state television.
"Today, in saying 'no' to terrorism, killings, violence, we also say 'no' to the inexplicable drive by a certain group of people to deride religious feelings," he said.
Russia is a multi-ethnic, multi-confessional country, with a large Muslim minority, but Putin has increasingly promoted the Russian Orthodox Church as the carrier of ethical values indispensable for the nation.
Putin, who is at loggerheads with Western countries over the Ukraine crisis, did not join dozens of other world leaders who led more than one million people in a Paris march in support of Charlie Hebdo and the right to freedom of expression.
More protests, both in support of the magazine as well as against it, followed in Europe, the Middle East and North Africa.