A Chinese national is accused of taking photographs of a Navy base in Florida.
Authorities detained 27-year-old Lyuyou Liao on the day after Christmas. Investigators say he ignored a warning to enter a restricted area and take photos of Naval Air Station Key West.
Liao is charged with photographing and sketching defense installations and entering military property, all misdemeanors. But one charge carries a sentence of up to one year in prison.
According to the criminal affidavit, Liao claimed he just took photos of the sunrise. Investigators, however, found photographs of the buildings and other property on the base.
Liao pleaded not guilty during his arraignment in federal court on Monday.