A powerful explosion rocked the Mexico City headquarters of state oil giant Pemex killing at least 14 people and injuring 100 others.
The blast hit the lower floors of the tower block, throwing debris into the streets and sending workers running outside.
Interior Minister Miguel Angel Osorio Chong said the blast killed at least 14 people and injured 100. It was not yet clear what caused the explosion, and the death toll could still rise, he added.
"The place shook, we lost power and suddenly there was debris everywhere. Colleagues were helping us out of the building," witness Cristian Obele told Mexican television.
President Enrique Pena Nieto said via Twitter he "deeply regretted" the deaths and headed to the scene of the blast.
More top news
Former astronaut, who was part of the Apollo 14 mission in 1971, died at a hospice at the age of 85 according to a family statement.
Reality TV star was crowned the winner after beating off competition from actress Stephanie Davis who was runner-up.
The decline of the world's bee population has been well documented but new research suggests the problems bees face are 'manmade'.