At least 21 people were killed and 18 were injured when a bus carrying mainly international tourists fell off an overpass in a fiery, “apocalyptic” crash near Venice, Italy Tuesday night. The bus — which was en route to a campsite near the Marghera area — plowed through a barrier on the elevated street and plunged several feet onto an area near railroad tracks below in Mestre, where it caught fire, according to officials. “The people in the bus found themselves surrounded by flames,” said Mauro Luongo, commander of the Venice firefighters team. “The scene we found was terrible. It took about one hour to extract some of the bodies.”Venice’s mayor, Luigi Brugnaro, called the horrific crash “an apocalyptic scene” and declared the city to be in mourning in a social media post. “A huge tragedy struck our community this evening… There are no words,” he said in a statement posted to X, formerly Twitter. Two children, five Ukrainians, one German and the Italian bus driver were among the dead, Venice prefect Michele Di Bari said.