Authorities say they now believe that one man is responsible for two separate bank robberies within seventy-two-hours of one another in Washington County this week. The first occurred Monday morning at the Washington Financial Bank on East Wylie Avenue in Washington and the second happened Wednesday morning at the First National Bank on Route Nineteen in North Strabane Township. The male suspect is described as being white and in the second robbery, was wearing a black jacket, a backpack, cargo pants and his face was partially covered by a hospital mask. North Strabane police say the FBI is now also involved and they are working with City of Washington police as well. Anyone with information on the robbery, including information on the suspect is asked to submit a tip at 724-746-4090 or tips@nstpd.com.