Russian and pro-Russian news e-outlets reported French satirical weekly newspaper Charlie Hebdo allegedly publishing satirical works about terrorist attacks in Moscow metro back in 2010. The news went viral in social networks.
In fact, these works were published by Belgian newspaper Knack and English version of The Korea Times (later, the works were also published in Indonesia), not by Charlie Hebdo. This caused a major iternational scandal in 2010.
Head editor of Knak apologised for the works. So did Koreans.