PHNOM PENH An angry swarm of hornets killed a four-year-old Cambodian girl and her grandmother and injured four other family members after their nest was dislodged from a nearby tree in heavy rain, Reuters quoted a newspaper as saying on Tuesday. Thousands of hornets entered the family's home in northwestern Kompong Speu Province and attacked the girl, who was asleep in a hammock, the Khmer-language *** Koh Santepheap *** reported. The grandmother was attacked when she tried to rescue the girl, it said. The two died in hospital, while four other family members were treated and released, the newspaper said.