Rescue workers search through the rubble for students at Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 20, 2017.
Members of a rescue team hold a fellow rescuer from the Topos volunteer search and rescue group by his feet during the search for students at the Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 21, 2017. REUTERS/Daniel Becerril - RC16DB094FE0
A rescue worker searches through rubble in a floodlit search for students at Enrique Rebsamen school in Mexico City, Mexico September 20, 2017.
Workers carry a tube during the search for students at Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 20, 2017.
Soldiers stand near parts of a collapsed school building during a search for students at the Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 21, 2017.
Rescue workers remove a dead body after searching through rubble in a floodlit search for students at Enrique Rebsamen school in Mexico City, Mexico September 20, 2017.
A dog is held by a rescue worker during the search for students at Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 20, 2017.
Rescue workers search through the rubble for students at Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 20, 2017.
Rescue workers search through the rubble for students at Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 20, 2017.
Soldiers and rescue workers are seen during a search for students at the Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 21, 2017.
Support beams are placed on a crumbling wall of a room during the search for students at the Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 21, 2017.
Rescue workers search through rubble in a floodlit search for students at Enrique Rebsamen school in Mexico City, Mexico September 19, 2017. Picture taken on September 19, 2017.
Rescue workers search in the rubble for students of the Enrique Rebsamen school after an earthquake hit Mexico City, Mexico September 20, 2017
Rescue workers transport a tent as they search for students through the rubble at Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 20, 2017.
Flowers and a religious image are seen amidst support beams and rubble during the search for students at the Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 21, 2017.
Volunteers gather during the search for students at the Enrique Rebsamen school after an earthquake in Mexico City, Mexico, September 21, 2017.
Workers reinforce a balcony during a search for students at the Enrique Rebsamen school after an earthquake in Mexico City, Mexico September 20, 2017. Picture taken September 20, 2017. REUTERS/Daniel Becerril
Mexico races to find survivors at collapsed school
Rescuers labor against the odds to save a 12-year-old schoolgirl and other possible survivors trapped beneath the collapsed Enrique Rebsamen School after an earthquake in central Mexico.