WIBW has a story that reports that there was a bomb threat in a Ramada Inn hotel, the call was traced to a cell phone, the hotel was evacuated and appears safe at this time.
The police spotted the truck with the anti-government writing on the side and when they pulled the truck over, they determined that the driver was the suspect related to the bomb threat. They do not know what is in the truck as a precaution they closed the road. The bomb squad and FBI are involved
I googled Topeka I 70 closed and found several reports