A submarine sailor has pleaded guilty to illegally videotaping female officers in the vessel's shower area, and has been sentenced to 10 months in a Navy brig.

Petty Officer 2nd Class Ryan Secrest pleaded guilty Monday to charges that he made the video and lied to investigators. He also received a bad conduct discharge and a reduction in rank.

Secrest is among seven sailors charged in a case that has disrupted the Navy's integration of women into its submarine force. The women in the videos were among the first to serve on subs.

Military prosecutors say Secrest in 2014 used the camera on his cellphone to take a video of the officers.

Secrest is the sixth sailor tried in the case, and the fifth to be found guilty.