Some Okotoks residents were left in the dark Monday night.

A large thunderstorm rolled through the area where a lightning strike resulted in power outages.

According to Fortis Alberta, at 8:19 p.m. an outage impacted 868 customers.

This included homes between Northridge Drive and Crystal Ridge Drive, and areas north and south of Milligan Drive and around 370th Avenue.

Fortis was able to restore power to 253 customers at 10:30 p.m. and to all customers by 11:20 p.m.

Outages can be reported to 24/7 by calling 310-WIRE (9473) or 1-866-717-3113.

Questions, comments, or story ideas? Email us at news@okotoksonline.com