The United States has sent Mexico part of its dossier on the murky disappearance of 43 students in 2014 that drew international condemnation, President Andres Manuel Lopez Obrador said Monday. Lopez Obrador said he had asked US Vice President Kamala Harris in early May to share the file, as requested by a human rights commission investigating the case. "I asked the vice president to help us and I want to take the opportunity to thank her because she has already sent me part of the dossier," he told reporters. "I can't say more, but we already have the response," Lopez Obrador said, adding that he expected Washington to send him the rest of the report this week. The teaching students had commandeered five buses to travel to a demonstration, but were stopped by corrupt police in the city of Iguala, Guerrero and handed over to a drug cartel. Prosecutors initially said the cartel mistook the students for members of a rival gang and killed them before incinerating their bodies at a garbage dump and tossing the remains in a river. An official report presented in January 2015 by the government of then president Enrique Pena Nieto was rejected by relatives as well as independent experts from the Inter-American Commission on Human Rights. Lopez Obrador said that his government was committed to establishing the "whole truth" behind the mass disappearance, which outraged the country. So far the remains of two of the students have been identified with the help of experts at the University of Innsbruck. In February, Mexico sent 16 more sets of human remains to Austria for genetic analysis to see if they match with any of the missing students. jla-dr/ft