The National Park Service says it is investigating after a nesting loggerhead sea turtle was found dead on the Cape Hatteras National Seashore beach, with signs that the creature was run over by a vehicle. The female turtle came onto the beach early Monday morning and had begun to lay eggs in a nest in the sand, according to a news release from the federal park. That’s when it is believed a motor vehicle struck the the turtle. Intact eggs thought to be viable were discovered nearby, the park said. Loggerheads are listed as threatened under the Endangered Species Act.