Back Bay Experiences Power Outage

Power has been restored across parts of the Back Bay after an early morning outage left residents without lights and air conditioning.

Massachusetts State Police tweeted the Prudential Tunnel is open for traffic going both east and west, but the Clarendon Street ramp is still closed.

A cable failure at the Scotia Street substation left about 12,000 customers without electricity and shut down the Prudential Tunnel on the Mass Pike.

The power failure occurred at the same station that suffered from a massive power outage last March.

NStar President Craig Hallstrom said there's a difference between Sunday morning's outage and the one last year.

"This isn't a catastrophic failure," Hallstrom said. "No damage to any big large station equipment. There was no fire."

About 4,000 customers will lose power again overnight in a scheduled power outage that NStar will use to fix remaining problems before Monday's morning commute.

"We'll work to advance-notify all who will be impacted by planned outage during overnight hours. Duration will vary," tweeted NStar.