MILAN - At least 20 people died and 16 were injured in the collapse of a motorway bridge in the Italian city of Genoa, a senior official at the country's civil protection agency said on Tuesday. 'The data will be updated and we expect the toll to rise,' Luigi D'Angelo told reporters at a briefing. He added that some 30 cars and between five to 10 trucks were on the road when a section of the bridge crashed down. D'Angelo said the information available to authorities was not yet sufficient to establish the causes of the disaster