Baltimore Police are investigating after threatening notes linked to a Ku Klux Klan-affiliated group were discovered in Fells Point on Friday.

Police said officers responded to a report of a suspicious package and recovered at least one bag containing a threatening note, which referenced the “Sacred White Knights,” a KKK linked group. Investigators reviewed surveillance footage that appears to show a silver Jeep driving through the area around 2:30 a.m. and discarding objects from the vehicle.

No arrests have been announced.