Landslides have blocked a highway with rubble and isolated 3,000 people in a quake-hit town in southwest China, Xinhua News Agency said. Heavy rains Monday pushed large amounts of unstable earth and rocks onto three different sections of the highway near Yingxiu town in Sichuan province, Xinhua reported. Hundreds of rescuers were working to clear the road, Xinhua said, and the government is considering sending relief materials into Yingxiu by helicopter. "We're not sure when the road will be reopened as the rain is really a problem. It may cause new landslides," an official with the Sichuan provincial highway administration was quoted as saying in the late Monday report.