The man whose amateur video of a Paris police officer’s cold-blooded murder shocked the world now regrets sharing the footage online, saying he never expected it to be broadcast so widely.

Paris made the Charlie Hebdo journal an honorary citizen and the creator of Asterix offered to draw for it as support poured in for the satirical publication decimated by Islamist gunmen for mocking the prophet Mohammad.

A leading Muslim cleric has said that Islamic leaders in Ireland have to accept there was a problem “of extremism and radicalisation” among young people and to take action to address it.