Genoa bridge collapse: what we know

As many as 30 people were killed on Tuesday when a giant motorway bridge collapsed in Genoa in northwestern Italy.The Morandi viaduct, less than five kilometres (three miles) to the west of Genoa's old port, was built in the 1960s and completed in 1967.Genoa's rugged terrain means that motorways that run through the city and the surrounding area are characterised by bridges and tunnels.