Mexico City interim Prosecutor Ulises Lara speaks with the mothers of missing children at the site where volunteer searchers said they found a clandestine crematorium in Tlahuac, on the edge of Mexico City, Wednesday, May 1, 2024. Ceci Flores, a leader of one of the groups of so-called "searching mothers" from northern Mexico, announced late Tuesday that her team had found bones around clandestine burial pits and ID cards, and prosecutors said they were investigating to determine the nature of the remains found. (AP Photo/Ginnette Riquelme)
A member of the Mexico City Search Commission digs in an area where search volunteers said they found a clandestine crematorium in Tlahuac, on the edge of Mexico City, Wednesday, May 1, 2024. Ceci Flores, a leader of one of the groups of so-called "searching mothers" from northern Mexico, announced late Tuesday that her team had found bones around clandestine burial pits and ID cards, and prosecutors said they were investigating to determine the nature of the remains. (AP Photo/Ginnette Riquelme)
Women holding digging tools stand at the site where a clandestine crematorium was found, as the press and police stand by in Tlahuac, on the edge of Mexico City, Wednesday, May 1, 2024. A leader of one of the groups of so-called "searching mothers" from northern Mexico, announced late Tuesday that her team had found bones around clandestine burial pits and ID cards, and prosecutors said they were investigating to determine the nature of the remains. (AP Photo/Ginnette Riquelme)
National Guards stand at the site where volunteer searchers said they found a clandestine crematorium in Tlahuac, on the edge of Mexico City, Wednesday, May 1, 2024. Ceci Flores, a leader of one of the groups of so-called "searching mothers" from northern Mexico, announced late Tuesday that her team had found bones around clandestine burial pits and ID cards, and prosecutors said they were investigating to determine the nature of the remains found. (AP Photo/Ginnette Riquelme)
Ceci Flores, leader of a "searching mothers" group from northern Mexico, carries a shovel at the site where she said her team found a clandestine crematorium in Tlahuac, on the edge of Mexico City, Wednesday, May 1, 2024. Flores announced late Tuesday that her team had found bones around clandestine burial pits and ID cards, and prosecutors said they were investigating to determine the nature of the remains. Behind her at left is activist Bryan Lebaron. (AP Photo/Ginnette Riquelme)
A search dog from the Mexico City Search Commission named Argos searches in an area where search volunteers said they found a clandestine crematorium in Tlahuac, on the edge of Mexico City, Wednesday, May 1, 2024. Ceci Flores, a leader of one of the groups of so-called "searching mothers" from northern Mexico, announced late Tuesday that her team had found bones around clandestine burial pits and ID cards, and prosecutors said they were investigating to determine the nature of the remains. (AP Photo/Ginnette Riquelme)
Police stand by as members of the National Search Commission use rakes to search an area where volunteers said they found a clandestine crematorium in Tlahuac, on the edge of Mexico City, Wednesday, May 1, 2024. Ceci Flores, a leader of one of the groups of so-called "searching mothers" from northern Mexico, announced late Tuesday that her team had found bones around clandestine burial pits and ID cards, and prosecutors said they were investigating to determine the nature of the remains found. (AP Photo/Ginnette Riquelme)
A police officer escorts women carrying digging tools at the site where a clandestine crematorium was found in Tlahuac, on the edge of Mexico City, Wednesday, May 1, 2024. A leader of one of the groups of so-called "searching mothers" from northern Mexico, announced late Tuesday that her team had found bones around clandestine burial pits and ID cards, and prosecutors said they were investigating to determine the nature of the remains. Third from right is Jacqueline Palmeros who has been searching for her disappeared daughter since 2020 in Mexico City, and second from right is María de Jesús Soria whose daughter disappeared in Veracruz in 2016, and whose remains were turned over to her in 2022. (AP Photo/Ginnette Riquelme)
Police stand guard in an area where volunteers said they found a clandestine crematorium in Tlahuac, on the edge of Mexico City, Wednesday, May 1, 2024. Ceci Flores, a leader of one of the groups of so-called "searching mothers" from northern Mexico, announced late Tuesday that her team had found bones around clandestine burial pits and ID cards, and prosecutors said they were investigating to determine the nature of the remains found. (AP Photo/Ginnette Riquelme)
Police tape off the area where volunteers said they have found a clandestine crematorium in Tlahuac, on the edge of Mexico City, Wednesday, May 1, 2024. Ceci Flores, a leader of one of the groups of so-called "searching mothers" from northern Mexico, announced late Tuesday that her team had found bones around clandestine burial pits and ID cards, and prosecutors said they were investigating to determine the nature of the remains found. (AP Photo/Ginnette Riquelme)
A member of the National Search Commission uses a ground-penetrating radar in an area where volunteers said they have found a clandestine crematorium in Tlahuac, on the edge of Mexico City, Wednesday, May 1, 2024. Ceci Flores, a leader of one of the groups of so-called "searching mothers" from northern Mexico, announced late Tuesday that her team had found bones around clandestine burial pits and ID cards, and prosecutors said they were investigating to determine the nature of the remains found. (AP Photo/Ginnette Riquelme)