Diamond Bar Fire 2009?

A fire has broke out in Diamond Bar. I live nearby, I see the flames from home.
The Diamond Fire broke out in 8 separate fires within the half hour. The police is putting residents on immediate fire alert.
What caused the fire? We are very confused here.

Also, my kids have to go to school tomorrow.
Which diamond bar schools are going to have school tomorrow and which ones will not?

Reports say as many as five to eight separate distinct fires are burning, their locations all close to the 60 Freeway.

150 firefighters are on the scene.

Unconfirmed reports say Diamond Ranch High School is under evacuation. Diamond Bar Blvd is closed at eastbound 60.

No news about what cause the fire.

Here is a link to a national fire page.
http://www.nifc.gov/fire_info/nfn.htm
Some of the disaster response organizations include information about school closures.
Maybe some schools will be closed tomorrow.

I hope my grandparents are ok, they live near the fire location.
2009 will be the year of fire.