Four children were injured, two critically, Sunday afternoon when a car was knocked out of gear at a home in North Hall, authorities reported. Two of the children, Julian Rangeo, 8, and Sebastian Rangeo, 5, were flown to Children’s Healthcare of Atlanta at Egleston where they were in stable condition late Sunday night. The other two, Emilee Guerra, 1, and Savannah Brown, 1, were taken by ambulance to Northeast Georgia Medical Center.