For the second time in less than three weeks, Metro Transit Police arrested a Virginia man on charges of indecent exposure.

Police arrested 47-year-old William Madison Jr. July 29 for allegedly exposing himself to a woman on a Blue Line train in Arlington in March.

He was released on his personal recognizance but allegedly struck again this week, police said.

Madison allegedly exposed himself to a woman on a Vienna-bound Orange Line train about 8:30 p.m. Monday, according to police. He was rearrested Tuesday at the entrance of the Huntington station.

Madison, who lives in Alexandria, faces charges in Arlington and Fairfax counties. He was taken to the Fairfax County Adult Detention Center and held on a $1,000 secured bond, police said.

Police believe there may be additional victims. Anyone with information for investigators should call the MTPD Criminal Investigations Division at 301-955-5000.