LOS ANGELES (AP) — Six aircraft are scheduled to arrive in South California on Tuesday to help fight the fierce wind-driven wildfires that are ravaging the region.

The water- or retardant-dropping planes are being dispatched by the Department of Defense.

Homeland Security Secretary Michael Chertoff says several thousand cots, blankets and other supplies are also en route to an evacuation center in San Diego.

He says the federal government will set up an office in Pasadena to assist victims of the wildfires and help them get temporary shelter, medical care and other forms of assistance.