A roof collapse at a tutoring center under construction in Lahore, Pakistan, has killed at least 14 schoolchildren. Police and rescue officials report that the tragedy happened Tuesday. Eight other children are injured and receiving treatment at a hospital. A senior police official says the owner of the tutoring center and another person have been arrested. Rescuers continue to clear the rubble, fearing more children could be trapped. The center was in an aging building, and the roof of its second floor was under construction and collapsed due to poor construction. Building collapses are common in Pakistan due to poorly enforced construction standards.