A landslide toppled an elementary school building and buried 18 students Monday in a mountainous southwest China county recovering from a recent earthquake. The landslide smothered the Youfang Elementary School and hit two farmhouses in Zhenhe village around 8 a.m., the Yiliang county government said on its website. Another person was buried in a house. Rescuers rushed from the Yiliang county seat to Zhenhe three hours away to dig out the students, said an official with the county foreign affairs office, Peng Hong.