The Latest: Evacuations lifted in wildfire near San Diego

JAMUL, Calif. – The Latest on a Southern California wildfire (all times local):

7:15 a.m.

Officials say a criminal investigation has been launched into the origin of a brush fire that forced hundreds of people to evacuate southeast of San Diego.

Cal Fire says all evacuations have been lifted and the blaze near Jamul (HAH-mul) is 75 per cent contained Monday after scorching more than 3 square miles (8.3 square kilometres) of dry brush.

Capt. Issac Sanchez tells the Union-Tribune newspaper (http://bit.ly/2qc4WDc) that a video posted to social media appears to show the start of the fire in an area commonly used for target shooting. Sanchez says investigators will try to determine how the blaze was sparked on Saturday.

Occupants of rural homes and an RV resort and campground were ordered to leave over the weekend, but were allowed to return early Monday.

No injuries have been reported.

____

3:20 a.m.

Firefighters say they are making progress against a wildfire that has forced hundreds of people to evacuate a popular campground and small community southeast of San Diego.

The state Department of Forestry and Fire Protection said Sunday that a rise in humidity allowed firefighters to advance on the blaze near Pio Pico RV Resort and Campground.

Authorities reported it was 70 per cent contained by late Sunday after burning across more than 2 square miles (5 square kilometres).

The blaze broke out Saturday south of Jamul (HAH-mool) and spread rapidly through grass and brush.

Campers and residents of nearby Dulzura were evacuated. An evacuation warning remained in effect for that community, but residents were allowed to return.

Authorities say the campground remains under evacuation because of infrastructure damage.

They did not reveal the extent of the damage.