Hydro-Quebec crews say a power failure in the West Island Friday is due to defective equipment, but they are not sure where the faulty equipment is.

About 5,000 people lost power at 3:15 a.m. in Ile Bizard, DDO, Pierrefonds and Ste. Anne de Bellevue. By midday just over 3,000 were still without electricity.

The utility said the outage is due to defective equipment, not the cold snap, but the exact cause of the problem is still unknown.

Crews are redirecting electricity from different feed lines to work around the problem.

In the meantime residents in Pierrefonds, Ile Bizard and Roxboro are asked to reduce their electrical consumption.