About 300 protesters in Mexico City have demanded justice for two teenage girls who reported being raped by police officers in the capital.

Shouting "Justice" and "They don't protect us: They violate us," the mostly women protesters descended on the city's security headquarters and local prosecutor's office on Monday.

The crowd turned unruly, covering the capital's security minister, Jesus Orta, with pink glitter and spray-painting police. Protesters also displayed a pig head outside the prosecutor's office and shattered glass on the building.

Orta urged the protesters to remain calm and vowed an investigation and punishment for any officer "if he has committed a crime of a sexual nature," while guaranteeing that police would ensure the protection of "women and all citizens."

Read more: Mexico to pursue new strategy in 'war on drugs'

Two rape cases

The women are enraged about two recent reports of sexual assault by police.

In one case, a 17-year-old girl said four policemen raped her on August 3 in their patrol car as she left a party in the municipality of Azcapotzalco, north of the capital. The case has raised a wave of outrage after the city attorney, Ernestina Godoy, admitted last week that the officers have not been charged because officials are waiting for the victim to identify the perpetrators.

In the other case, just six days later, a 16-year-old girl said a policeman raped her at the photographic archives in the city center. The policeman was arrested on Thursday.

Read more: Scale of Mexico's migrant influx 'completely unexpected'

Watch video 03:50 Share Violence against women in Guatemala Send Facebook google+ Whatsapp Tumblr linkedin stumble Digg reddit Newsvine Permalink https://p.dw.com/p/1I8dE Violence against women in Guatemala

Provocation

Mayor Claudia Sheinbaum — the capital's first elected female mayor — said at a press conference that authorities would carry out justice, but called the protesters provocateurs.

"We are not going to fall for any provocation, this was a provocation. They wanted the government to use violent methods and in no way will we fall for it. There will be an investigation and the prosecutors' office will resolve it," Sheinbaum said.

She also said that "due to the seriousness of the case" the Human Rights Commission of Mexico City would be involved in the investigation.

Godoy said on Twitter that her office had opened "several investigations" to examine the facts of the cases.

Systematic violence against women

Mexico has recorded high levels of violence against women. According to the United Nations, an estimated nine women are killed every day in the country.

According to the Mexican Institute of Statistics and Geography, 44% of women have suffered violence from a partner and 66% of women have experienced some form of violence during their life.

cw/cmk (AFP, EFE)

Each evening at 1830 UTC, DW's editors send out a selection of the day's hard news and quality feature journalism. You can sign up to receive it directly here.