At least 77 people are dead or missing after the heaviest rainfall in a century hit the Seoul region in South Korea. Landslides and floods have destroyed homes, a Buddhist monastery and military sites, officials say. About 10 landmines buried near an artillery unit in southern Seoul weren’t recovered after a mudslide, the country’s defence ministry says, leading officials to caution residents about stray explosives. The storms have also affected North Korea, but state media didn’t make any immediate reports of damage. More than half a metre of rain has fallen in the Seoul region since late Tuesday, according to the country’s weather bureau.