STAMFORD - Connecticut Light & Power says more than a thousand customers lost power overnight in Stamford when a transformer burst into flames.

The transformer explosion happened on Northill Street and knocked out power around 1:40 a.m.

Everyone's power has since been restored.

There is no word on what caused the explosion. 

For extended footage from the scene, watch the clip to the left or click News 12 Extra on Optimum TV channel 612.