French satirical magazine Charlie Hebdo has once again come under attack from social media users for publishing a "racist" cartoon of the three-year-old Syrian refugee boy who washed up dead on a beach in Turkey in September last year. 

The aunt of Syrian refugee Aylan Kurdi also condemned the cartoon, meant to be a satire on the mass sexual assault in Cologne, Germany, on New Year's Eve.

"Disgusting cartoon in Charlie Hebdo, is racist... where is the humanity... That disgusting, but we have to ignore it, (sic)" Aylan's aunt Tima Kurdi said in a couple of tweets.

"I hope people respect our family's pain. It's a big loss to us. We're not the same anymore after this tragedy. We're trying to forget a little bit and move on with our life. But to hurt us again, it's not fair," CBC News quoted her as saying from her home in Port Coquitlam, British Columbia.

Charlie Hebdo's cartoon depicted the mob assault on women in Cologne with the picture of two terrified women running away from two men whose faces are pig-like. The text in the cartoon reads: "Migrants, Que Serait Devenu Le Petit Aylan S'il Avait Grandi? Tripoteur De Fesses En Allemagne.(Migrants, what would little Aylan have become if he had grown up? A bum groper in Germany)".

As many as 516 criminal complaints were registered following the mob assault on New Year's Eve near a railway station in Cologne. The German Police had been quoted by The Telegraph as saying that most of the assaulters were asylum-seekers and those who entered Germany illegaly.

The magazine had earlier attracted criticism for publishing two other cartoons of the dead Aylan. It mocked his death in a cartoon with text, "Proof that Europe is Christian. Christians walk on water - Muslim children sink".

The text on the other cartoon reads, "Promo! Kids menu: 2 for the price of 1".

Even the social media users have expressed their dislike and criticised the magazine's attempt at creating a "humorous" cartoon.