PORT-AU-PRINCE, Haiti — A new study from Yale University is arguing that the United Nations should be held accountable for introducing cholera into Haiti.

Researchers from Yale Law School and the Yale School of Public Health say there's ample scientific evidence to show that U.N. troops from Nepal brought cholera to Haiti in October 2010 and that the institution should take responsibility.

The U.N. earlier shot down a claim seeking compensation on behalf of cholera victims who blame peacekeepers for the outbreak, citing immunity.

The Yale report's authors also say the world body violates obligations under international law by not providing a forum to address the grievances of cholera victims.

Health officials say Haiti's cholera outbreak has killed more than 7,500 people and sickened another 578,409.

The report was released Tuesday.