Authorities investigated a suspicious package that was dropped off Wednesday at a post office in Lake View on the North Side.
A female suspect entered the post office at 9:27 a.m. in the 1300 block of West Irving Park Road and dropped an envelope on the counter with the words “notify the FBI” written on it, then ran away, according to Officer Jessica Rocco, a Chicago police spokeswoman.
The CPD Bomb and Arson unit was called to the scene to investigate, but has since left the building, police said.
The Chicago Fire Department also responded to the scene for reports of a hazardous materials situation, spokesman Larry Merritt said. The scene was cleared before 12:30 p.m.
The U.S. Postal Inspection Service, police and fire officials are still investigating the incident, according to postal inspection service representative Julie Kenney.