UPDATE: As of 6:45 p.m. Saturday, Rocky Mountain Power said 1,000 customers have had their power restored.
The cause of the outage was a broken switchgear, Rocky Mountain Power Spokesperson Spencer Hall said.
The previous story continues below:
SANDY, Utah — More than 1,500 people were without power in Sandy, Rocky Mountain Power wrote in a tweet Saturday.
As of 6:00 p.m., the outage was affecting 1,593 customers.
The cause of the outage was under investigation. Rocky Mountain Power said many customers affected would be without power until approximately 9:30 p.m. Saturday.
For the latest update on the outage, click here.