A power surge caused lights to flicker, televisions to turn off and set off ship alarms at CFB Esquimalt late Tuesday night.

At around 10 p.m., residents of Esquimalt and surrounding areas reported hearing sirens coming from the naval base, while others reported that the power momentarily went out in their homes.

Many turned to social media to try to find out what caused the incident.

BC Hydro confirmed Wednesday morning that the power surge was caused by a cable fault at its Horsey substation, off Topaz Park.

The resulting surge caused lights to flicker in home, but had a greater effect on CFB Esquimalt – triggering alarms on vessels that were docked and connected to shore power.

The cable fault was quickly fixed, according to BC Hydro, and vessel sirens at the naval base were turned off after blaring for several minutes.