Arore Belot/AFP via Getty Images Belgian ministers file complaint against ‘sugar daddy’ posters at university Posters outside universities call on students to ‘go out with a sugar daddy.’

Two ministers for Belgium's French-speaking community filed a complaint late Monday against an advertising campaign publicizing a website seeking to connect rich, older men to young women, whose posters appeared near the Free University of Brussels, Le Soir reported.

"This scandalous and alarming advertisement demonstrates this site encourages the prostitution of young female students," said Isabelle Simonis, the minister for women's rights in Belgium's French-speaking community. "It is time to act decisively by raising awareness, but also by using all possible legal means," Simonis said. "Incitement to debauchery and prostitution" is illegal under Belgium's penal code.

The ad campaign addresses students directly, saying "Hey students, improve your lifestyle. Go out with a sugar daddy," an informal term for a older, rich man who dates and financially supports young women. The RichMeetBeautiful website promises "sugar babies" "financial freedom" and "a mentor with class." For sugar daddies, it promises "no games," a "youth delirium," and "1,000 young women awaiting their mentor."

Simonis and Jean-Claude Marcourt, the higher education minister, also said they will speak to local mayors to take the posters down.

A statement by the student union of the French-speaking community on Facebook said: "Students need scholarships, not sugar daddies!"