Mexico City: A massive explosion ripped through a children's hospital in Mexico City on Thursday killing seven people including three children, reports said.
Dozens were injured in the blasts, officials said.
More people are feared to be trapped in the rubble following the blast, rescuers said as they toiled through the debris of the Maternity and Children's Hospital in the Cuajimalpa.
City mayor Miguel Angel Mancera told MVS Radio that the area was evacuated "for safety because a lot of the people are babies in the crib area."
Television images showed people with bloodied faces being carried to ambulances. Around 40 percent of the hospital was destroyed.
A gas tanker truck blew up outside the building, officials said. Lugo said that the explosion "very likely" happened when a fuel pipe broke, but that the cause was still under investigation.
Mancera said at least 32 adults and 22 children were injured, though none were in serious condition. Most were hit by shattered glass.
Lugo said 37 people were transferred to other hospitals.
Mexico has been hit by other gas explosion tragedies in recent years.
In May 2013, 25 people died when a gas tanker's container came loose on a highway north of Mexico City, setting nearby homes and cars on fire.
Last year, three people died in the northeastern state of Tamaulipas when a gas leak caused an explosion in a shopping center.
(With Agency Inputs)