OAK CREEK, Wis. (AP) — Someone removed bolts from the base of a high-voltage electrical transmission tower, causing it to fall on a second tower and knock out power to 17,000 customers.
The federal Joint Terrorism Task Force and the FBI were investigating.
"We have not determined the motive of this action," FBI agent Mike Johnson said Monday. "It may be terrorism, it may not be. It's just too early to tell."
Both 80-foot towers fell to the ground Saturday. The bolts had been removed from plates connecting the legs of one tower to its base, Police Chief Thomas Bauer said.