A poster campaign by the anti-immigrant Sweden Democrats at a subway station in central Stockholm has stirred outrage in the Nordic country.

The posters are directed to tourists visiting the Swedish capital and apologize for "the mess" in Sweden, saying the country has a problem with "forced begging" organized by "international gangs."

Critics say the message spreads racist misconceptions about Roma people from eastern Europe who are begging in Sweden. Anger has also been directed at Stockholm's public transport provider SL, which is profiting from the ads.

SL spokesman Jesper Pettersson said Tuesday its policy allows advertising by all political parties.

The office of Sweden's Chancellor of Justice said it has received more than 50 complaints about the matter and will investigate whether the publishers are inciting racial hatred.