Continue to get details confirming 21 people have died and a0 people are injured as a rich Rescue Operations are still under way. We can take a look atjohn donis ands report now. In the darkness. Emergency crews are battling to rescue the injured and recover the dead. The bus upturned and crushed by the force of the fall disaster. From up on the bridge, it veered off. You can see the drop. Eyewitnesses say the bus then caught fire when it hit the ground. It happened in the m district on the mainland across the water from venices tourist centre. In a statement on social media, the citys mayor said the scene at the crash site was apocalyptic, and italys Prime Minister expressed her deepest condolences on the bridge. You can see where the bus went through the crash barriers. Investigators are now trying to work out why. Officials are warning the number of People Killed is likely to rise with italian media reporting that several children are among the victims. Jon donnison, bbc news. Live