Firefighters work near a building emitting smoke after explosions in North Andover, Massachusetts, United States in this September 13, 2018 still image from social media video footage by Boston Sparks. Boston Sparks/Social Media/via REUTERS ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. NO RESALES. NO ARCHIVE. MANDATORY CREDIT.
Firefighters work near a building emitting smoke after explosions in North Andover, Massachusetts, United States in this September 13, 2018 still image from social media video footage by Boston Sparks. Boston Sparks/Social Media/via REUTERS ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. NO RESALES. NO ARCHIVE. MANDATORY CREDIT.
Firefighters work near a building emitting smoke after explosions in Lawrence, Massachusetts, United States in this September 13, 2018 still image from social media video footage by Boston Sparks. Boston Sparks/Social Media/via REUTERS ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. NO RESALES. NO ARCHIVE. MANDATORY CREDIT.
A fire engine is seen near a building emitting smoke after explosions in Lawrence, Massachusetts, United States in this September 13, 2018 still image from social media video footage by Boston Sparks. Boston Sparks/Social Media/via REUTERS ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. NO RESALES. NO ARCHIVE. MANDATORY CREDIT.