4 sickened at post office

Montgomery County Fire and Rescue Service Hazmat teams found no evidence of weapons of mass destruction or hazardous materials at a Montgomery County post office facility where an unknown substance sent four people to the hospital Saturday for "irritation to their skin," authorities said.

Assistant Chief Scott Graham said the people transported, three women and one man, had what are believed non-life threatening injuries, and Montgomery County Fire and Rescue Service Hazmat teams were turning the incident over to post office investigators. He said investigators had examined several packages and other equipment in the post office but still had not determined what the substance was.

Firefighters were first called to the scene at 10421 Motor City Drive just before 10:30 a.m., Graham said.