Traffic was snarled four hours on Wednesday as police and fire personnel investigated a suspicious package incident at the Lakeview post office, 1343 West Irving Park Road.
A woman entered the facility around 9:30 a.m. and threw an envelope over the counter. A message written on the outside of the envelope said, “Call the FBI,” police said.
Fire department supervisors declared a low-level hazardous materials incident as a precaution while police bomb technicians and other investigators worked to secure the scene.
The area was declared clear at 12:30 p.m. and police said the incident was “non-bonafide.”
Irving Park Road was closed to traffic near the post office and CTA buses were re-routed for about four hours while officials worked the scene.
Police this afternoon said no arrests had been made.