BY A STAFF REPORTER: The death toll from a massive landslide in southern Peru has risen to at least 15. Another 20 people were injured in a landslide near the riverside town of Sekocha, about 125 miles northwest of the city of Arequipia. Officials said two others were still missing. According to the National Emergency Service, at least 10 houses have been destroyed and 310 houses have been reported to have been damaged so far. "More than 1,000 families have been affected," said William Alvarado, the district mayor of the worst-hit area. We can say that 90 per cent of the houses of the affected families have been completely destroyed. "