Chinese policemen control the road at the site of an explosion in Ningbo in the eastern Zhejiang province on November 26, 2017. An explosion so powerful it was heard several kilometres away killed two people and injured over 30 in China's port city of Ningbo on Sunday while toppling several disused buildings, authorities and residents said, but there was no word as to the cause. / AFP PHOTO / DAN MARTIN (Photo credit should read DAN MARTIN/AFP/Getty Images)
