DENVER (AP) — An explosion that blew at least two manhole covers into the air in downtown Denver injured a worker and triggered fire alarms in a nearby office building.
The accident happened around midday Friday.
Xcel Energy spokesman Mark Stutz tells The Denver Post a contractor hit an underground electric line with a jackhammer. The worker's condition wasn't disclosed.
Firefighters say an electrical fire burned beneath a street, shutting down traffic in part of downtown. Officials say they're investigating what happened.