The Louisville Metro Police Department is canceling all off-day and vacation requests for personnel until further notice in anticipation of an announcement in the Breonna Taylor investigation, referring to the moves as part of its "state of emergency" preparations.The investigation is being conducted by Kentucky Attorney General Daniel Cameron's office. While the AG himself has remained mum on a timeline -- or date -- on when he plans to make an announcement in the probe, sources have said it could take place this week.A spokesperson for the LMPD added that "it is important to note that the AG has said there is no timetable for the announcement," reiterating the uncertainty around when an announcement will take place.According to the LMPD, which sent out a statement Monday, residents might also start seeing barriers being staged around downtown. The spokesperson said it's another part of the police department's preparations for an announcement.The LMPD said in a tweet that "no parking" signs will also be placed along downtown streets. No parking will be allowed on surface streets from 2nd to 9th streets and from Market to Broadway when the AG makes his announcement.Interim police Chief Robert Schroeder issued a memo to the LMPD in which he said the "state of emergency" preparations will help the police department "ensure we have the appropriate level of staffing to provide for public safety services and our policing functions."Schroeder's memo goes on to address the cancellation of off-days and vacation requests.Click here to read the police chief's memo to LMPDElsewhere in Louisville, the federal courthouse has also taken measures in anticipation of an announcement. The building will be closed for the week, suggesting the announcement will take place before Friday.The building's first floor windows were also boarded up.Anticipation has been mounting for Cameron to make an announcement, especially after Mayor Greg Fischer announced a $12 million settlement with the Taylor family over a wrongful death civil lawsuit.Fischer said the city is not admitting wrongdoing in this settlement, but is acknowledging the need for reform. He also said the timing of the settlement is not related to reports that a grand jury is currently meeting to determine whether there will be any criminal indictments in this case.Still, activists and family members are awaiting a decision on whether the police officers involved in Taylor's death will be charged.Gov. Andy Beshear, for his part, declined to give any comments on the investigation or an announcement amid preparations in Louisville. Previously, the governor has stressed the importance of the AG's office being transparent about its findings in the probe.Cameron has not shared any details with the public on the case since announcing in August that his office had received a ballistics report in the probe.