Mexico Blast

Mexico City blast: Hunt for survivors in Pemex building

The BBC's Will Grant said the blast happened "at the worst possible moment"
Rescuers have been working overnight to find survivors trapped after a deadly blast at the Mexico City headquarters of the state oil company, Pemex.
Some 500 rescuers helped by dogs are searching the building for a number of people thought to be trapped by a blast that killed 25 people and injured 100.
Relatives of employees have gathered in search of information - some trying to reach loved ones via mobile phone.
The cause of the blast is under investigation, Pemex says.
'Full weight of the law'
Relatives of employees gathered desperate for information about their loved ones
Thursday afternoon's explosion in the lower floors of a building adjoining the 54-storey Pemex skyscraper happened as shifts were changing, making the area particularly crowded.
Debris from the blast spread out on to the street in front of the building.
Red Cross ambulances and helicopters were shuttling the injured to hospital, while firefighters and soldiers dug through chunks of concrete with a crane to reach trapped survivors.
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At the scene
Will Grant BBC News, Mexico City
The Pemex building in the north of Mexico City is surrounded by large numbers of federal police and paramedics. Sniffer dogs are being used to look for people trapped under the rubble.
Mexico City is used to earthquakes, and the emergency services seem well prepared for this type of disaster.
The skyscraper withstood the blast too, with most of the damage confined to the ground and first floors. But night has set in now in the Mexican capital, further complicating the search.
Some family members of missing workers are gathered outside the Pemex building for news of their loved ones, while others have travelled directly to the hospitals.
The authorities and paramedic teams are releasing information at regular intervals but the exact...