Amnesty International says the discovery of 129 bodies during the search for 43 missing students highlights a "crisis of enforced disappearances" in Mexico.

The international human rights watchdog calls the situation "shocking" — not only in the state of Guerrero, where the students disappeared last September, but also elsewhere in Mexico.

Amnesty's statement Monday came in response to an AP report the previous day in which federal officials said the bodies had been found in 60 clandestine graves over the last 10 months.

None of the corpses were matched to the missing students. Prosecutors say the students were seized by police, handed over to drug gang members, killed and incinerated, though families of the victims doubt the official story.