According to the Associated Press, the Marine Corps said Wednesday it is cooperating fully with the Onslow County Sheriff's Office in the disappearance of Lance Corporal Lauterbach, who is about eight months pregnant.
Lauterbach was supposed to testify about an on-base incident that she witnessed on base.
The State Bureau of Investigation also is working on the case. Marine Corps and U.S. Navy investigators are cooperating with the investigation.
Authorities say Lauterbach, originally from Montgomery, Ohio, was reported missing Dec. 19 by her mother, who last spoke with her daughter on Dec. 13. Her cell phone was found Dec. 20 near the main gate at Camp Lejeune.
Lauterbach is assigned to the 2nd Marine Logistics Group of the II Marine Expeditionary Force. Lauterbach joined the Marine Corps in June 2006 and was trained as a personnel clerk.