A Navy sailor has admitted that he failed to tell his superiors about secretly recorded cellphone videos of female officers and student trainees undressing for showers aboard a submarine.

Petty Officer 3rd Class Brandon McGarity was sentenced by a court-martial Friday to 15 days in a Navy brig, a two-grade reduction in rank and forfeiture of two-thirds of a month's pay. McGarity pleaded guilty to failing to tell superiors last year that he knew other sailors possessed videos of topless female midshipmen.

Seven sailors have been charged after the Navy discovered videos of women undressing were filmed and traded aboard the USS Wyoming, a submarine based in coastal Georgia. Two sailors pleaded guilty earlier this week in a case that's tarnished the Navy's integration of women into its submarine fleet.