A 20-year-old tourism student has been expelled from a Sao Paulo university after chaos broke out on campus when she turned up in a short dress.

The photos above show Geisy Arruda sitting in class at Bandeirante University (Uniban) on October 22. So outraged by her outfit, her classmates took photos of her to post online. When she left the class, a group of boys started following and taunting her. One student is heard shouting "Shout at her people!" The situation escalated to such a point that the police were called to escort her from the premises in a professor's white coat. As she's being led out, the crowd chants "Puta!" (whore) repeatedly. The incident was filmed by several students on mobile phones; who then posted the footage on YouTube.

Amateur images compiled by TV IG.

On November 8 Arruda's university placed a public notice (below) in Sunday newspapers. Entitled "Educational Responsibility", the ad explained that Geisy Arruda had been expelled for disrespecting "ethical principles, academic dignity and morality". It also said that the university would be temporarily suspending some of the students seen heckling the 20-year-old in the videos.

The decision has caused outrage across the country. Both the national student union and Brazil's top official for women's policy, Nilcea Freire, have publicly condemned it.

UPDATE (11.11.09 - 9.30am): Arruda was officially readmitted to the university in a statement made on Nov. 10 by vice chancellor Ellis Brown. The location of her class will have to be changed however to make her return "more relaxed", he said.