Fourteen have reportedly died and 80 were injured after the blast.
The explosion happened Thursday at the building adjacent to the executive tower of Petroleos Mexicanos, or Pemex, Mexico's state-owned oil company.
Image by Guillermo Gutierrez / AP
In addition to the at least 14 dead and dozens more injured, as many as 30 people were trapped in the debris, the AP reports.
Firefighters belonging to the Tacubaya sector and workers dig for survivors.
Image by Guillermo Gutierrez / AP
PEMEX tweeted earlier today that the building was evacuated before the explosion because of electricity issues.
Image by Guillermo Gutierrez / AP
