In a report presented in Panama, UN Women and the UN Development Programme (UNDP) found assaults on women persisted in the region despite severe laws aimed at curbing the phenomenon.
"The issue of violence against women in Latin America is critical. It's the most violent region in the world against women outside of conflict contexts," Eugenia Piza-Lopez, head of UNDP's gender mission in Latin America, told AFP.
The rate of sexual violence against women outside of relationships is the highest in the world in the region, and the second-highest for those who are in, or were in, a couple, the report stated.
Three of the 10 countries with the highest rates of rape of women and girls were in the Caribbean, it said.
Femicide, the killing of women, occurred on a "devastating scale" in Central America, it said, explaining that two out three women murdered died because of their gender.
"In some countries it has become a severe crisis. In the Northern Triangle (Honduras, El Salvador and Guatemala) and Mexico the problem of femicide and violence against women has reached epidemic levels, in many cases with links to organized crime," Piza-Lopez said.
Central America's Northern Triangle is considered the most dangerous area in the world outside war zones, mainly because of rampant gangs and drug cartels.
It also said that 16 of the countries had femicide on the books, and a few punished newer types of crimes, such as cybercrime, political violence, or acid attacks.
Despite those advances, though, the "plague" of violence continues to be a threat to human rights, public health and public safety, it said.
The UN recommended strengthening institutions and policies in the region, and allocating resources to empower women. It also advised that "patriarchal" cultural norms that maintain gender inequality needed to be addressed.
The report added one third of women worldwide have been a victim of violence in their relationship or of sexual violence by people outside their relationship.
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