HELENA, Mont. (AP) — The Latest on Montana wildfires (all times local):

11:33 a.m.

Officials say a wildfire burning north of Helena has grown to around 100 acres (40 hectares).

Lewis and Clark County Emergency Management officials said Saturday a bulldozer line has been built around the fire and aircraft continue to drop fire retardant, but no containment level has been established.

State and federal crews made an aggressive attack on the fire north of Lake Helena on Friday, using three air tankers and two helicopters.

Residents of about 100 homes north of Lake Helena remained evacuated Saturd...