HANOI, Vietnam — A bridge collapsed and a bus was swept away by flooding Monday as more rain fell following a typhoon in Vietnam that has caused at least 59 deaths in the Southeast Asian country and disrupted businesses and factories in the export-focused northern industrial hubs, state media reported.

Nine people died when Typhoon Yagi made landfall in Vietnam on Saturday before weakening to a tropical depression, and at least 50 others have died in the consequent floods and landslides,…