Power restored after blackout in Cambridge

CAMBRIDGE, Mass. (WHDH) -- Power has been restored after a blackout left much of East Cambridge in the dark for about 2 hours.

NStar said the outage was caused by an issue with a transmission line. Initially there were about 17,000 customers without power -- primarily in the East Cambridge/Kendal Square area. Just after 6 p.m. NStar lowered the amount to 13,000 customers, according to their Twitter account. Power was fully restored in Cambridge just before 7 p.m.

Traffic lights were out during rush hour traffic which caused significant delays.

"A lot of honking, a lot of bikes weaving in and out," said one woman. "It was a little scary."

The CambridgeSide Galleria Mall was evacuated at about 4:45 pm.

"We just went around and told people we were closing," said Issie Shait, mall manager.

Firefighters received calls from people stuck in elevators. No injuries were reported.

The MBTA said normal service resumed on the Red Line at about 6:15 p.m. Officials said no trains were stuck in tunnels.

NStar said it is investigating the transmission issue.