Mexico City blast at Pemex, state oil giant, kills 14

At least 14 people have died and more than 80 were injured in Mexico City after an explosion at the headquarters of Mexico's state oil company, Pemex.

Emergency services, assisted by dogs, are searching for people trapped in the rubble. The cause of the blast is under investigation, Pemex says.
The 54-floor Pemex Executive Tower houses hundreds of employees.
Last September, 30 people died in an explosion at a Pemex gas plant in northern Mexico.
"We have 13 dead at the scene and one more at the hospital," Mexican Interior Minister Miguel Angel Osorio Chong told reporters.
"There are more than 80 wounded and we continue to look for survivors in the debris."
Television pictures showed rubble from the blast spread out on to the street in front of the building, and Red Cross ambulances on the scene attending to the injured, our correspondent in Mexico City reports.
Police have cordoned off the streets around the building, which is located in a busy commercial area of Mexico City.
At this stage there is no official explanation for the explosion, our correspondent says.
Pemex said on Thursday evening it was investigating the possible causes.
The firm's chief executive, Emilio Lozoya Austin cut short a business trip to Asia and was on his way back to Mexico, the company added.

                                     The 54-floor Pemex building is 214 meters (702 feet) tall