RUTLAND Prison officials and the Vermont State Police had a riot on their hands during the evening of Oct. 18 at the 130-bed Marble Valley Correctional Facility in Rutland. Police said several inmates refused to be locked in their cells. VSP Lt. David Notte told news reporters that several prisoners were being riotous. Inside the prison, angry inmates displayed hastily written signs reading We need case workers and We are mistreated. The exact origin of the complaints by inmates was not made available to reporters by police and prison officials. Police, bearing riot gear, responded from Rutland, Brandon, Casttleon and Killington. As soon as police arrived, the neighborhood surrounding the facility was secured. One bystander noted that there were injuries involved int he incident, but the report was not confirmed at press time; two inmates were said to have been taken to Rutland Regional Medical Center.