Yellowknife residents have been ordered to begin evacuating the city immediately as wildfires approach, N.W.T. officials said Wednesday evening.

While the city is not in immediate danger, Environment Minister Shane Thompson said a "phased approach" to evacuating will allow citizens to get out safely by car or by plane.

The evacuation order says residents should leave "according to risk." People living along Ingraham Trail, in Dettah, and the Kam Lake, Grace Lake and the Engle business district in Yellowknife are considered at highest risk and are urged to leave as soon as possible.

Other residents of Yellowknife and Ndilo should leave by noon Friday.