[Kate!]

CNN)An overpass carrying a subway train collapsed in Mexico City late Monday, killing 15 people and injuring at least 70, according to local government officials.

The subway was traveling on an elevated and outdoor portion of the city's rapid transit system on the newest Line 12, also known as the Golden Line, when a portion of the overpass collapsed, Mexico's Secretariat of Risk Management and Civil Protection said.

CCTV surveillance footage shows the moment of the collapse directly over a street with moving cars, followed by a cloud of dust and debris