Via Metro.

Metro today released the pictures of four men described as persons of interest in recent indecent exposure cases.

The transit agency said in a release today that Metro Transit Police “have identified an increase in indecent exposure reports in the past two months.”

“Indecent exposure cases can be a gateway crime to more serious sexual misconduct, which is why we have placed a priority on advancing these investigations,” Metro Transit Police Chief Ron Pavlik said. “We are absolutely committed to keeping Metro a safe space for all riders.”

The men in the photos are persons of interest in cases that happened between August and October one three Red Line trains and one Green Line. Anyone with information is asked to contact 202-962-2121 with the case number. More information can be found here.