Clandestine burial pits, bones and children's notebooks found in Mexico City, searchers say

Volunteer searchers said they have found a clandestine crematorium on the edge of Mexico City, the latest grim discovery in a nation where more than 100,000 people are listed as officially missing.

It's the first time in recent memory that anyone claimed to have found such a body disposal site in the capital. Collectives searching for missing persons say that drug cartels and other organized crime gangs often use drums filled with diesel or caustic substances to burn or dissolve bodies to leave no trace — but up to now, there has been little evidence of that in Mexico City.

Ceci Flores, a leader of one of the groups of so-called "searching mothers" from northern Mexico, announced on social media late Tuesday her team had found bones around a charred pit on the outskirts of the city.