Firefighters and air tankers in southern British Columbia continue to battle a forest fire that has forced the evacuation of 11,000 residents. The British Columbia Forest Service says that the fires,whichsparked over the weekend,did not spread overnight but officials are still struggling to contain the blaze. Forest Service fire information officer Kirsten Jones said the Glenrosa wildfire,east of Vancouver,is now 40 percent contained and is about 400 hectares (1,000 acres) in size. Officials say the wildfire at Rose Valley Dam and the Terrace Mountain have not been contained because the terrain is very steep. Another 6,000 people in the West Kelowna subdivision are also on evacuation alert.