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Freezing rain downed hydro wires and blew up transformers on the fringes of rural Ottawa, causing power outages that at one time Saturday night, left about 1,500 mainly Hydro One customers without power.

A Hydro One official said about 400 people would not have power restored until about 4. a.m. Sunday.

Ottawa firefighters were busy Saturday night putting out small tree fires caused by falling wires, mostly in the rural areas.