Power has been restored to nearly 6,500 residents according to Tucson Electric Power.
According to Tucson Fire, the outage affected the traffic signals at the intersection of Broadway and Kolb and other locations on Broadway.
Traffic lights out at Broadway and Kolb @Tucson_Police avoid the intersection if you can.
— Tucson Fire PIO (@TucsonFirePIO) May 15, 2017
The cause of the outage is under investigation.