A motorway bridge has collapsed in the northwest Italian city of Genoa, sending vehicles plummeting up to 90m (295ft) to the ground and killing at least 22 people, officials say.

According to BBC news,Video footage appears to show one of the towers holding up the suspension bridge collapsing in stormy weather.

Vehicles fell along with bridge debris on to rail tracks and a warehouse.

Emergency workers are trying to free people caught in crushed vehicles or rubble, and are using sniffer dogs.