Deja vu for some folks in Port Colborne as they're waking up in the dark again.
Officials with Canadian Niagara Power say they are investigating the cause of this morning's outage, affecting 1,600 customers.
Right now there is no estimated time of restoration.
This comes as crews worked through the weekend, including last night, to try and restore power to 80 customers that have been without hydro since Thursday's wind storm.
The storm initially knocked out power to thousands of Canadian Niagara Power customers.