Television news reports indicate that the entire daytime shift of guards at the jail reportedly called off sick in unison yesterday, leaving officials in charge to lock down the facility. No other details were released by county or jail officials only to say that the union representing the guards was notified about the incident, and that staffing the jail was a priority. Prison officials said that they will investigate to find put what caused the mass call off, and determine if any other action is needed. No incidents were reported at the jail.