Some residents in the east Selkirk area of southern Manitoba say they're frustrated with a power outage that began early this morning.

Manitoba Hydro is blaming the outage, which began at around 6:30 a.m. CT Thursday, on a switch that failed in the east Selkirk substation.

About 1,500 residents are affected. A Hydro spokesman says it's not yet known when power will be restored.

Janice Marcymik, who lives in the Rural Municipality of St. Clements between Lockport and Selkirk, says the outage seemed to have begun with "no warning."

"So now it's not going to be on for over 12 hours," she told CBC News on Thursday afternoon.

"I am concerned … people outside the city depend on wells and pumps. We have no water."

Meanwhile, some 7,000 Manitoba Hydro customers in Winnipeg were also without power on Thursday morning.

A truck knocked down a pole in the north part of the city, which affected a main feeder line to a wide swath of neighbourhoods from Leila venue to Inkster Boulevard and Pipeline Road to Scotia Street.

Power was restored to everyone by 10 a.m. CT.