From the BBC:

Sweden's embassy in Pakistan has expressed regret over the publication of a cartoon depicting the Prophet Muhammad in a Swedish newspaper.

Pakistan had complained about the cartoon, which depicted the head of the Prophet on the body of a dog.

Sweden's government said it regretted any hurt but could not apologise as it was not responsible for the drawing and could not prevent its publication. ...

The new drawing depicting the Prophet's head on the body of a dog was published in the Swedish newspaper Nerikes Allehanda on Sunday.

The cartoon's creator, Lars Vilks, told the Associated Press news agency the drawing was art.

"I'm not against Islam. Everybody knows that," he is quoted as saying.