Federal prosecutors made an unannounced attempt to visit the Federal Reserve headquarters in Washington DC but were denied access to the building, according to multiple reports.

The attempted visit appears to be connected to a months-long criminal investigation involving renovations at the Federal Reserve facility. The prosecutors involved are from the office that has been conducting this ongoing probe.

Details about the specific nature of the criminal investigation or what prompted prosecutors to seek immediate access to the Federal Reserve building have not been disclosed. The Federal Reserve has not commented on the incident or the broader investigation.

It remains unclear whether prosecutors will attempt to obtain formal access through legal channels or if the investigation will proceed through other means. The timing and circumstances of the unannounced visit suggest potential urgency in the ongoing criminal probe.