Imágenes de la emergencia tras explosión en edificio en Nueva York

This image provided by @NYPDSpecialops shows, New York firefighters as they battle a blaze at a commercial and residential block on March 26, 2015, in New York's East Village. The entire building at 125 Second Avenue was engulfed in flames and the lower two floors appeared partially collapsed, television footage and press photographs showed. Twelve people were reported hurt according to fire department officials. == RESTRICTED TO EDITORIAL USE / MANDATORY CREDIT: "AFP PHOTO HANDOUT-@NYPDSpecialops"/ NO MARKETING – NO ADVERTISING CAMPAIGNS – NO A LA CARTE SALES / DISTRIBUTED AS A SERVICE TO CLIENTS ==

New York firefighters battle a blaze at a commercial and residential block on March 26, 2015, in New York's East Village. The entire building at 125 Second Avenue was engulfed in flames and the lower two floors appeared partially collapsed, television footage and press photographs showed. Twelve people were reported hurt by fire department officials. AFP PHOTO/EDUARDO MUNOZ ALVAREZ

A firefighter exits a blaze at a commercial and residential block on March 26, 2015, in New York's East Village. The entire building at 125 Second Avenue was engulfed in flames and the lower two floors appeared partially collapsed, television footage and press photographs showed. Twelve people were reported hurt according to fire department officials. AFP PHOTO/ KENA BETANCUR

NEW YORK, NY – MARCH 26: A building burns after an explosion on 2nd Avenue on March 26, 2015 in New York City. The seven alarm fire drew firefighters from across the city. A number of injuries have been reported. Andrew Burton/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS & TELEVISION USE ONLY ==

Residents exit the area where firefighters (rear) battle a blaze at a commercial and residential block on March 26, 2015, in New York's East Village. The entire building at 125 Second Avenue was engulfed in flames and the lower two floors appeared partially collapsed, television footage and press photographs showed. Twelve people were reported hurt by fire department officials. AFP PHOTO/KENA BETANCUR

This image provided by @NYPDSpecialops shows, New York firefighters as they battle a blaze at a commercial and residential block on March 26, 2015, in New York's East Village. The entire building at 125 Second Avenue was engulfed in flames and the lower two floors appeared partially collapsed, television footage and press photographs showed. Twelve people were reported hurt according to fire department officials. == RESTRICTED TO EDITORIAL USE / MANDATORY CREDIT: "AFP PHOTO HANDOUT-@NYPDSpecialops"/ NO MARKETING – NO ADVERTISING CAMPAIGNS – NO A LA CARTE SALES / DISTRIBUTED AS A SERVICE TO CLIENTS ==

New York firefighters arrive to battle a blaze at a commercial and residential block on March 26, 2015, in New York's East Village. The entire building at 125 Second Avenue was engulfed in flames and the lower two floors appeared partially collapsed, television footage and press photographs showed. Twelve people were reported hurt by fire department officials. AFP PHOTO/EDUARDO MUNOZ ALVAREZ

A New York police officer uses tape to block access to a blaze at a commercial and residential block on March 26, 2015, in New York's East Village. The entire building at 125 Second Avenue was engulfed in flames and the lower two floors appeared partially collapsed, television footage and press photographs showed. Twelve people were reported hurt by fire department officials. AFP PHOTO/EDUARDO MUNOZ ALVAREZ

NEW YORK, NY – MARCH 26: Smoke rises from a burning building after an explosion on 2nd Avenue on March 26, 2015 in New York City. The seven alarm fire drew firefighters from across the city. A number of injuries have been reported. Andrew Burton/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS & TELEVISION USE ONLY ==

NY05. NUEVA YORK (ESTADOS UNIDOS). 26/03/2015.- Bomberos trabajan para extinguir el fuego de un edificio que colapsó hoy, jueves 26 de marzo de 2015, en la parte baja de Manhattan en Nueva York (Estados Unidos). Reportes del departamento de Bomberos de la ciudad aseguran que 12 personas se encuentran heridas, tres de ellas en estado crítico. EFE/JUSTIN LANE

NY07. NUEVA YORK (ESTADOS UNIDOS). 26/03/2015.- Bomberos trabajan para extinguir el fuego de un edificio que colapsó hoy, jueves 26 de marzo de 2015, en la parte baja de Manhattan en Nueva York (Estados Unidos). Reportes del departamento de Bomberos de la ciudad aseguran que 12 personas se encuentran heridas, tres de ellas en estado crítico. EFE/JUSTIN LANE