Tucson Police blew up a suspicious device just before noon Friday on Grant Road at Interstate Ten.
A bicyclist reported seeing something on the underpass sidewalk wrapped in duct tape with wires sticking out of it.
Investigators believe it was a real explosive device.
Police closed off Grant Road at I-10 and the northbound frontage road bomb while teams disposed of the device.
- Bomb squad detonates explosive device in N. Idaho (seattletimes.nwsource.com)
- Authorities investigating after pipe bombs found in California park (cnn.com)
- Bomb robot destroys suspicious object (news.theage.com.au)