The Inter-American Commission on Human Rights is urging Mexico to appoint a special prosecutor to handle the case of 43 missing college students whose fate remains a mystery a year after they disappeared at the hands of local police and a drug gang.

Commission President Rose-Marie Belle Antoine says Mexico must implement all recommendations of the commission's independent team of experts, including replacing the investigative team and following the experts' hypothesis that the students may have disappeared while hijacking a bus carrying heroin or drug money.

The experts took apart the Attorney General's version that the students were mistaken for rival gang members and burned in a garbage dump.

Antoine spoke Friday, saying Mexico is experiencing a "serious human right crisis."

The Mexican government denied it has a widespread crisis.