Drone aerials of metro collapse damage in Mexico

Drone images filmed Tuesday showed the aftermath of the Mexico City metro disaster in which at least 23 people died. The accident happened late Monday when an elevated section of track collapsed onto a busy highway.

In the images, cranes and workers could be seen near the site of the crash as the orange and green train sat between a broken concrete support beam.

The overpass was about five meters (16 feet) above the road in the borough of Tlahuac, but the train ran above a concrete median strip, which apparently lessened the casualties among motorists on the road below.

The collapse occurred on the newest of the Mexico City subway's lines, Line 12, which stretches far into the city's south side. Like many of the city's dozen subway lines, it runs underground through more central areas of the city of 9 million, but then runs on elevated concrete structures on the city's outskirts.