The Michigan State Police Bomb Squad says a suspicious-looking backpack had personal items in it and was not a threat.
Lansing Police told FOX 47 that they responded to a call at around 1 p.m. for a suspicious-looking backpack left at a U.S. Postal drop box at Allegan and Townsend streets in downtown Lansing.
They brought in a bomb-sniffing dog that "hit on" the package. This caused the Michigan State Police to bring in a robot to investigate the bag.
The State Police had also blocked roads around the post office and evacuated the Senate and other federal buildings.
People in the Capitol were also sheltered in place.
At around 2:30 p.m., the area was opened to the public again.
Federal Postal Police, Senate security and Postal agents are continuing to investigate the incident.
This is a breaking news story. Stay with us for more information.