The lights went out for 360 Bluewater Power customers in Oil Springs Saturday night.
Control systems operator Tyler David says the outage was due to a Hydro One feeder.
"Just before 8 p.m we had a loss of supply from Hydro One. All of our 360 customers that were affected had their power restored at 11:15 p.m."
David says Hydro One probably had another 1,000 customers lose power.
While a cashier was scanning items, the man reportedly took out a firearm and demanded that they put the items into a brown paper bag.
Police are appealing for witnesses or dashcam footage
Lambton County OPP say the investigation is continuing
Point Edward virtuoso harmonica player Mike Stevens is among 83 people appointed to the prestigious Order of Canada.
Canada Day festivities are planned for Tuesday in Petrolia, Forest, Port Franks and Grand Bend.
Shortly after 6 p.m. Sunday, Sarnia police responded to reports of a man walking into traffic on Christina Street near Wellington Street, and threatening random people on the sidewalk.
