The US Navy is investigating a hidden camera discovered by a female Marine in the women’s bathroom of the USS Arlington.

A spokesman for the Sixth Fleet said the Naval Criminal Investigative Service has launched a probe into the “recording device” found “in a head,” aka toilet on the ship, NBC reported.

“The Navy/Marine Corps team takes all reports of sexual harassment seriously, and are committed to thoroughly investigating these allegations and providing resources and care to victims of sexual harassment,” Cdr. Kyle Raines said.

The Marine reported the device in March, and the NCIS has been investigating since, according to NBC.

Authorities confirmed the device can take still images, but it’s unclear what’s on the footage and whether it could record video.

The Arlington is based in Norfolk, Va., and serves as a landing dock for naval ships. The ship left with a fleet from the East Coast in December for seven-month deployment in Europe and the Middle East, according to Stars and Stripes, and is currently docked in Greece.