A Spanish Christian Church and a popular food deli were at the center of the gas explosion in East Harlem, which killed two people and injured 55.
Images of the buildings before the devastation have been released by Google Street View.
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Emergency services were alerted to the crash at 3.50pm on Thursday, Sussex Police said.
WARNING: Some people may find some of the images in this report distressing.
Medical staff who helped during the Westminster terror attack have received a royal thanks for their life-saving efforts.