Arlington County Police are warning residents about a flasher who has been active on the Washington and Old Dominion bike trail this month. A white male reportedly exposed himself to women at various sections of the bike trail at least five times during the week of Jan. 11-15, officials said.

Detectives are asking the public for help in tracking down the suspect. Anyone who uses the W & OD Bike trail and observes any suspicious activity is asked to contact police. They also urge trail users to carry cell phones, not to use the trail alone and not to use headphones. Anyone with any information about the case is asked to contact Detective Comer at (703) 228-4243 or Detective Austin at (703) 228-4241.