Dang Wangi district police chief Noor Dellhan Yahaya said the march involved 150 people, including human rights activists, university students and members of political parties.

Noor Dellhan said the rally did not follow the provisions of the law. He said investigations would be carried out under the Peaceful Assembly Act and Minor Offences Act.

“Based on police observation, the participants were found to have gathered and marched while holding placards,” he said in a statement. The placards contained slogans such as “Imagine if men are as disgusted with rapes as with periods”, “Child not bride”, “Transwomen are women”, and “Police your behaviour, not my body”.

Noor Dellhan said police would identify those involved and call them up to record their statements and submit the investigation paper to the deputy public prosecutor.

Organisers of the rally, called the Women’s March Malaysia, said it was aimed at bringing people together to call for gender equality, justice and an end to all forms of discrimination against women and girls.

Participants called for a ban on child marriages and for legal reforms on gender equality as well as decent work standards and a living wage.