NIAGARA FALLS, Ont. - Fire crews in Niagara Falls, Ont., are continuing to battle an overnight blaze that has destroyed several tourist shops near the popular Clifton Hill area.

Officials say the blaze started just after midnight and soon spread to other buildings, destroying a tattoo parlour, a cigar and souvenir shop and a clothing store.

Deputy fire chief Phil Ross says when crews arrived, heavy smoke and fire was spewing from the building.

He says the blaze is contained and under control, but fire crews are still fighting it.

No injuries have been reported.

Extreme cold has been an issue in battling the blaze with ice hampering efforts to get the blaze under control.